1-4x+12=20

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Solution for 1-4x+12=20 equation:


Simplifying
1 + -4x + 12 = 20

Reorder the terms:
1 + 12 + -4x = 20

Combine like terms: 1 + 12 = 13
13 + -4x = 20

Solving
13 + -4x = 20

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + -4x = 20 + -13

Combine like terms: 13 + -13 = 0
0 + -4x = 20 + -13
-4x = 20 + -13

Combine like terms: 20 + -13 = 7
-4x = 7

Divide each side by '-4'.
x = -1.75

Simplifying
x = -1.75

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