7x-(4x-39)=30

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Solution for 7x-(4x-39)=30 equation:


Simplifying
7x + -1(4x + -39) = 30

Reorder the terms:
7x + -1(-39 + 4x) = 30
7x + (-39 * -1 + 4x * -1) = 30
7x + (39 + -4x) = 30

Reorder the terms:
39 + 7x + -4x = 30

Combine like terms: 7x + -4x = 3x
39 + 3x = 30

Solving
39 + 3x = 30

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 + 3x = 30 + -39

Combine like terms: 39 + -39 = 0
0 + 3x = 30 + -39
3x = 30 + -39

Combine like terms: 30 + -39 = -9
3x = -9

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

Simplifying
x = -3

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