15-3x+4(x-20)=x+12

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Solution for 15-3x+4(x-20)=x+12 equation:


Simplifying
15 + -3x + 4(x + -20) = x + 12

Reorder the terms:
15 + -3x + 4(-20 + x) = x + 12
15 + -3x + (-20 * 4 + x * 4) = x + 12
15 + -3x + (-80 + 4x) = x + 12

Reorder the terms:
15 + -80 + -3x + 4x = x + 12

Combine like terms: 15 + -80 = -65
-65 + -3x + 4x = x + 12

Combine like terms: -3x + 4x = 1x
-65 + 1x = x + 12

Reorder the terms:
-65 + 1x = 12 + x

Solving
-65 + 1x = 12 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-65 + 1x + -1x = 12 + x + -1x

Combine like terms: 1x + -1x = 0
-65 + 0 = 12 + x + -1x
-65 = 12 + x + -1x

Combine like terms: x + -1x = 0
-65 = 12 + 0
-65 = 12

Add '65' to each side of the equation.
-65 + 65 = 12 + 65

Combine like terms: -65 + 65 = 0
0 = 12 + 65

Combine like terms: 12 + 65 = 77
0 = 77

Simplifying
0 = 77

Combine like terms: 0 + -77 = -77
-77 = 77 + -77

Combine like terms: 77 + -77 = 0
-77 = 0

The solution to this equation could not be determined.

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