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Stels [109]
3 years ago
5

5(4 − x) = −5x + 20 i need help

Mathematics
2 answers:
Elza [17]3 years ago
4 0

Answer:

Infinite solutions.

Step-by-step explanation:

Distribute the 5 to the numbers inside the parenthesis.

5 × 4=20

5 × -x=-5x

-5x+20.

They are the same.

-5x+20=-5x+20

Add 5x on both sides:

-5x+5x+20=-5x+5x+20

20=20

So there are infinite solutions.

adoni [48]3 years ago
3 0

Answer:

x=4

Step-by-step explanation:

-5(4-x)=-5x+20

We simplify the equation to the form, which is simple to understand

-5(4-x)=-5x+20

Reorder the terms in parentheses

+(-20+5x)=-5x+20

Remove unnecessary parentheses

-20+5x=-5x+20

We move all terms containing x to the left and all other terms to the right.

+5x+5x=+20+20

We simplify left and right side of the equation.

+10x=+40

We divide both sides of the equation by 10 to get x.

x=4

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