15x+2-3x=20

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


Simplifying
15x + 2 + -3x = 20

Reorder the terms:
2 + 15x + -3x = 20

Combine like terms: 15x + -3x = 12x
2 + 12x = 20

Solving
2 + 12x = 20

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 12x = 20 + -2

Combine like terms: 2 + -2 = 0
0 + 12x = 20 + -2
12x = 20 + -2

Combine like terms: 20 + -2 = 18
12x = 18

Divide each side by '12'.
x = 1.5

Simplifying
x = 1.5

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