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3 years ago

Please help me? -4(7+2x)=-7x-33

Mathematics

2 answers:

Mademuasel [1]3 years ago

6 0

Answer:x=5

Step-by-step explanation:

First we do the parenthesis

-4(7+2x)=-7x-33

To get

-28+-8x=7x+-33

and

-8x-28=-7x-33

Then we Add 7x to both sides.

-8x-28+7x=-7-33+7x

-x-28=-33

Then we Add 28 to both sides.

-x-28+28=-33+28

-x=-5

Lastly Divide both sides by -1.

-x/-1=-5/-1

X=5

BaLLatris [955]3 years ago

3 0

Answer is 5x

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Anestetic [448]

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y= bottles of water

QUANTITY EQUATION
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COST EQUATION
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STEP 1
solve for one variable in quantity equation and substitute in cost equation

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subtract y from both sides
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STEP 2
substitute 200-y in for x

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substitute y=125 in either equation

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Step-by-step explanation:

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