Helppp on Algebra Homework!?
Topic: Helppp on Algebra Homework!?
July 16, 2019 / By Lou Question:
i need to simplify (5z-9) -4 (-2z-3) ! pleaseeee pleaseee show work im obligated to this :(
by using multiplaction aka distributive poperty
Best Answers: Helppp on Algebra Homework!?
Kathryn | 2 days ago
Simplify ( 5z - 9 ) - 4 ( - 2z - 3 )
1) Clear the parentheses by multiplying each term inside by the number outside.
The terms inside the first parentheses are multiplied by 1 (not written because it is understood).
The terms inside the second are multiplied by - 4
When you get finished doing that, this is what you should have
5z - 9 + 8z + 12
2) Combine like terms
Add the z terms to each other and add the number terms to each other.
When you do that, this is what you get
13z + 3 <-- answer
👍 132 | 👎 2
Did you like the answer? Helppp on Algebra Homework!?
Share with your friends
Originally Answered: pls.HELPPP!.english homework.?
Should 14 year olds have the right to vote?
I did the same thing recently and that is what i was told to do. good luck i hope i help!
so its like saying (5z-9) -[4(-2z-3)]
start with simplifying the second half
(5z-9)+(8z+12) because -4 *-2=8 and -4*-3=12
then use FOIL. Firsts Outsides Insides Lasts
the firsts are 5z and 8z (the first number in each binomial)
then outsides: 5z and 12
so now you have 40z^2+ 60z
then insides: -9 * 8z=-72z
and lasts:-9 * 12=-108
so you have
simplify by finding a common factor
i always start with two, and keep dividing by it until it is simple, then find another factor if there is one
then simplify the two zs
check to make sure nothing else adds subtracts or divides
👍 50 | 👎 -2
(5z - 9) - 4 (-2z -3) = 0
(5z -9) +8z + 12 = 0 ( opening the bracket- (-4 x -2z) + (-4 x -3) )
5z - 9 + 8z +12 = 0
5z + 8z + 3 =0
13z + 3 = 0
13z = -3
z = -3/13
dint c d whole question,just saw the equation and rushed to the answer.
👍 49 | 👎 -6
First bypass the numbers to the the great selection aspects. Numbers with variables on one side and numbers with out variables on the different. 5x-22=8-10x +22 +22 5x=30-10x +10x +10x 15x=30 next divide by potential of the quantity with the variable in the front (the coefficient) to locate the cost of x on my own. 15x=30 /15 /15 x=2 Now you've your very last answer! desire this helped!
👍 48 | 👎 -10
(5z-9) -4 (-2z-3)
Use distributive property:
(5z-9) (8z+12) --- (-4 x -2z) and (-4 x -3)
Use foil method: firsts. outers. inners. lasts.
40z + 60z - 72z - 108
100z - 72z -108
Answer: 28z - 108. :]
👍 47 | 👎 -14
Originally Answered: Essay Helppp?
I'm an old guy now, but when I was in school, I was a quiet smart-aleck type. For an assignment like this, I would riff on the idea that "this stupid assignment is changing my life right now!" Some teachers would go for it, some wouldn't, but it's better than skipping it and getting an F. Remember, if this is for a composition or English class, the teacher is probably more interested in how you write, than in how important your ideas are. Good luck. (Maybe leave out the word "stupid.")