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3 years ago

4(7-x)=5(x+2) How would you solve this I’m comfused on this one.

2 answers:

7 0

4(7-x) = 5(x+2)
you would give 4 and 5 to everything in the parenthesis
28-4x = 5x+10
then subtract 10 on each side
28-4x = 5x+10
-10 -10
18-4x = 5x
then add 4x on each side
18-4x = 5x
+4x +4x
18 = 9x
x = 2

krok68 [10]3 years ago

6 0

ANSWER:

STEP:

Multiply the parenthesis by the number before.

28-4x=5x+10

Add 4x to both sides.

28-4x=5x+10

28=9x+10

Subtract 10 from both sides.

18=9x

Divide both sides by 9.

2=x

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