x-4(x-5)=9(x+1)-7

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Solution for x-4(x-5)=9(x+1)-7 equation:


Simplifying
x + -4(x + -5) = 9(x + 1) + -7

Reorder the terms:
x + -4(-5 + x) = 9(x + 1) + -7
x + (-5 * -4 + x * -4) = 9(x + 1) + -7
x + (20 + -4x) = 9(x + 1) + -7

Reorder the terms:
20 + x + -4x = 9(x + 1) + -7

Combine like terms: x + -4x = -3x
20 + -3x = 9(x + 1) + -7

Reorder the terms:
20 + -3x = 9(1 + x) + -7
20 + -3x = (1 * 9 + x * 9) + -7
20 + -3x = (9 + 9x) + -7

Reorder the terms:
20 + -3x = 9 + -7 + 9x

Combine like terms: 9 + -7 = 2
20 + -3x = 2 + 9x

Solving
20 + -3x = 2 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
20 + -3x + -9x = 2 + 9x + -9x

Combine like terms: -3x + -9x = -12x
20 + -12x = 2 + 9x + -9x

Combine like terms: 9x + -9x = 0
20 + -12x = 2 + 0
20 + -12x = 2

Add '-20' to each side of the equation.
20 + -20 + -12x = 2 + -20

Combine like terms: 20 + -20 = 0
0 + -12x = 2 + -20
-12x = 2 + -20

Combine like terms: 2 + -20 = -18
-12x = -18

Divide each side by '-12'.
x = 1.5

Simplifying
x = 1.5

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