7=3x+13

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Solution for 7=3x+13 equation:


Simplifying
7 = 3x + 13

Reorder the terms:
7 = 13 + 3x

Solving
7 = 13 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
7 + -3x = 13 + 3x + -3x

Combine like terms: 3x + -3x = 0
7 + -3x = 13 + 0
7 + -3x = 13

Add '-7' to each side of the equation.
7 + -7 + -3x = 13 + -7

Combine like terms: 7 + -7 = 0
0 + -3x = 13 + -7
-3x = 13 + -7

Combine like terms: 13 + -7 = 6
-3x = 6

Divide each side by '-3'.
x = -2

Simplifying
x = -2

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