-7x+3(x+13)=75

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Solution for -7x+3(x+13)=75 equation:


Simplifying
-7x + 3(x + 13) = 75

Reorder the terms:
-7x + 3(13 + x) = 75
-7x + (13 * 3 + x * 3) = 75
-7x + (39 + 3x) = 75

Reorder the terms:
39 + -7x + 3x = 75

Combine like terms: -7x + 3x = -4x
39 + -4x = 75

Solving
39 + -4x = 75

Solving for variable 'x'.

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

Add '-39' to each side of the equation.
39 + -39 + -4x = 75 + -39

Combine like terms: 39 + -39 = 0
0 + -4x = 75 + -39
-4x = 75 + -39

Combine like terms: 75 + -39 = 36
-4x = 36

Divide each side by '-4'.
x = -9

Simplifying
x = -9

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