3(x+20)-2(-x+15)=20

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Solution for 3(x+20)-2(-x+15)=20 equation: 


Simplifying
3(x + 20) + -2(-1x + 15) = 20

Reorder the terms:
3(20 + x) + -2(-1x + 15) = 20
(20 * 3 + x * 3) + -2(-1x + 15) = 20
(60 + 3x) + -2(-1x + 15) = 20

Reorder the terms:
60 + 3x + -2(15 + -1x) = 20
60 + 3x + (15 * -2 + -1x * -2) = 20
60 + 3x + (-30 + 2x) = 20

Reorder the terms:
60 + -30 + 3x + 2x = 20

Combine like terms: 60 + -30 = 30
30 + 3x + 2x = 20

Combine like terms: 3x + 2x = 5x
30 + 5x = 20

Solving
30 + 5x = 20

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-30' to each side of the equation.
30 + -30 + 5x = 20 + -30

Combine like terms: 30 + -30 = 0
0 + 5x = 20 + -30
5x = 20 + -30

Combine like terms: 20 + -30 = -10
5x = -10

Divide each side by '5'.
x = -2

Simplifying
x = -2

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