Question

How do you solve 15-2x=3x

Answer 1

HEY There,

15-2x=3x

bring 2x to the right hand side

15 = 3x + 2x

15 = 5x

then, bring 5 to the denominator

15/5 = x

3 = x

HOPE YOU UNDERSTAND!!!!!!!!!!!!!

Answer 2

3) 15 - 2x = 3x

Add 2x to both sides so only one side contains the variable x.

15 = 5x

Divide both sides by 5.

x = 3; if you want to check your solution then plug x back into the original equation.

15 - 2(3) = 3(3)

15 - 6 = 9 ⇒ 9 = 9 so this would be true, your answer is correct.

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15) 10(2y + 2) - y = 2(8y - 8)

Distribute 10 and 2 inside their respective parentheses.

(20y + 20) - y = (16y - 16)

Combine like terms on the left side of the equation.

19y + 20 = 16y - 16

Subtract 16y from both sides.

3y + 20 = -16

Subtract 20 from both sides.

3y = -36

Divide both sides by 3.

y = -12