78=7x-13

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Solution for 78=7x-13 equation:


Simplifying
78 = 7x + -13

Reorder the terms:
78 = -13 + 7x

Solving
78 = -13 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
78 + -7x = -13 + 7x + -7x

Combine like terms: 7x + -7x = 0
78 + -7x = -13 + 0
78 + -7x = -13

Add '-78' to each side of the equation.
78 + -78 + -7x = -13 + -78

Combine like terms: 78 + -78 = 0
0 + -7x = -13 + -78
-7x = -13 + -78

Combine like terms: -13 + -78 = -91
-7x = -91

Divide each side by '-7'.
x = 13

Simplifying
x = 13

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