20+3x+7x-3=12

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Solution for 20+3x+7x-3=12 equation:


Simplifying
20 + 3x + 7x + -3 = 12

Reorder the terms:
20 + -3 + 3x + 7x = 12

Combine like terms: 20 + -3 = 17
17 + 3x + 7x = 12

Combine like terms: 3x + 7x = 10x
17 + 10x = 12

Solving
17 + 10x = 12

Solving for variable 'x'.

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

Add '-17' to each side of the equation.
17 + -17 + 10x = 12 + -17

Combine like terms: 17 + -17 = 0
0 + 10x = 12 + -17
10x = 12 + -17

Combine like terms: 12 + -17 = -5
10x = -5

Divide each side by '10'.
x = -0.5

Simplifying
x = -0.5

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