-13=3x+x-7

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Solution for -13=3x+x-7 equation:


Simplifying
-13 = 3x + x + -7

Reorder the terms:
-13 = -7 + 3x + x

Combine like terms: 3x + x = 4x
-13 = -7 + 4x

Solving
-13 = -7 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-13 + -4x = -7 + 4x + -4x

Combine like terms: 4x + -4x = 0
-13 + -4x = -7 + 0
-13 + -4x = -7

Add '13' to each side of the equation.
-13 + 13 + -4x = -7 + 13

Combine like terms: -13 + 13 = 0
0 + -4x = -7 + 13
-4x = -7 + 13

Combine like terms: -7 + 13 = 6
-4x = 6

Divide each side by '-4'.
x = -1.5

Simplifying
x = -1.5

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