3x-(-4x-5)=-7

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Solution for 3x-(-4x-5)=-7 equation:


Simplifying
3x + -1(-4x + -5) = -7

Reorder the terms:
3x + -1(-5 + -4x) = -7
3x + (-5 * -1 + -4x * -1) = -7
3x + (5 + 4x) = -7

Reorder the terms:
5 + 3x + 4x = -7

Combine like terms: 3x + 4x = 7x
5 + 7x = -7

Solving
5 + 7x = -7

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + 7x = -7 + -5

Combine like terms: 5 + -5 = 0
0 + 7x = -7 + -5
7x = -7 + -5

Combine like terms: -7 + -5 = -12
7x = -12

Divide each side by '7'.
x = -1.714285714

Simplifying
x = -1.714285714

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