7x-3(x+1)=-55

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Solution for 7x-3(x+1)=-55 equation:


Simplifying
7x + -3(x + 1) = -55

Reorder the terms:
7x + -3(1 + x) = -55
7x + (1 * -3 + x * -3) = -55
7x + (-3 + -3x) = -55

Reorder the terms:
-3 + 7x + -3x = -55

Combine like terms: 7x + -3x = 4x
-3 + 4x = -55

Solving
-3 + 4x = -55

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 4x = -55 + 3

Combine like terms: -3 + 3 = 0
0 + 4x = -55 + 3
4x = -55 + 3

Combine like terms: -55 + 3 = -52
4x = -52

Divide each side by '4'.
x = -13

Simplifying
x = -13

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