7x-(4x-5)=20

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Solution for 7x-(4x-5)=20 equation:


Simplifying
7x + -1(4x + -5) = 20

Reorder the terms:
7x + -1(-5 + 4x) = 20
7x + (-5 * -1 + 4x * -1) = 20
7x + (5 + -4x) = 20

Reorder the terms:
5 + 7x + -4x = 20

Combine like terms: 7x + -4x = 3x
5 + 3x = 20

Solving
5 + 3x = 20

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 + 3x = 20 + -5

Combine like terms: 5 + -5 = 0
0 + 3x = 20 + -5
3x = 20 + -5

Combine like terms: 20 + -5 = 15
3x = 15

Divide each side by '3'.
x = 5

Simplifying
x = 5

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