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castortr0y [4]
3 years ago
10

-5(-1.6z+2.4)+7.4z Simplify the expression to create an equivalent expression.

Mathematics
2 answers:
larisa [96]3 years ago
7 0
15.4z-12 is the correct answer
marysya [2.9K]3 years ago
5 0

Answer:

15.4z-12

Step-by-step explanation:

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Answer the following questions CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!
andriy [413]

remember that you can do anything to an equation as long as you do it to both sides

remember the distributive property: a(b+c)=ab+ac

also commutative property of addition: a+b=b+a

so

6(6x-2)+8(1-5x)=2x

distribute

6(6x-2)=6(6x)+6(-2)=36x-12

8(1-5x)=8(1)+8(-5x)=8-40x


36x-12+8-40x=2x

group like terms

36x-40x-12+8=2x

add like terms

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4x-4x-4=2x+4x

0-4=6x

-4=6x

divide both sides by 6

-4/6=(6x)/6

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x=-2/3

the solution is x=-2/3

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3 years ago
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