# 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
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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!

Hepsie
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) multiply them 40z 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 40z^2+60z-72z-108 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 20z^2+30z-36z-54 10z^2+15z-18z-27 then simplify the two zs 10z^2-3z-27 check to make sure nothing else adds subtracts or divides
👍 50 | 👎 -2

Earnestine
(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. sorry!
👍 49 | 👎 -6

Celinda
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

Annmarie
(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