7(2x-5)-4(x-20)=x-5

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Solution for 7(2x-5)-4(x-20)=x-5 equation:


Simplifying
7(2x + -5) + -4(x + -20) = x + -5

Reorder the terms:
7(-5 + 2x) + -4(x + -20) = x + -5
(-5 * 7 + 2x * 7) + -4(x + -20) = x + -5
(-35 + 14x) + -4(x + -20) = x + -5

Reorder the terms:
-35 + 14x + -4(-20 + x) = x + -5
-35 + 14x + (-20 * -4 + x * -4) = x + -5
-35 + 14x + (80 + -4x) = x + -5

Reorder the terms:
-35 + 80 + 14x + -4x = x + -5

Combine like terms: -35 + 80 = 45
45 + 14x + -4x = x + -5

Combine like terms: 14x + -4x = 10x
45 + 10x = x + -5

Reorder the terms:
45 + 10x = -5 + x

Solving
45 + 10x = -5 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
45 + 10x + -1x = -5 + x + -1x

Combine like terms: 10x + -1x = 9x
45 + 9x = -5 + x + -1x

Combine like terms: x + -1x = 0
45 + 9x = -5 + 0
45 + 9x = -5

Add '-45' to each side of the equation.
45 + -45 + 9x = -5 + -45

Combine like terms: 45 + -45 = 0
0 + 9x = -5 + -45
9x = -5 + -45

Combine like terms: -5 + -45 = -50
9x = -50

Divide each side by '9'.
x = -5.555555556

Simplifying
x = -5.555555556

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