7(x-4)-9(x+11)=55

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Solution for 7(x-4)-9(x+11)=55 equation:


Simplifying
7(x + -4) + -9(x + 11) = 55

Reorder the terms:
7(-4 + x) + -9(x + 11) = 55
(-4 * 7 + x * 7) + -9(x + 11) = 55
(-28 + 7x) + -9(x + 11) = 55

Reorder the terms:
-28 + 7x + -9(11 + x) = 55
-28 + 7x + (11 * -9 + x * -9) = 55
-28 + 7x + (-99 + -9x) = 55

Reorder the terms:
-28 + -99 + 7x + -9x = 55

Combine like terms: -28 + -99 = -127
-127 + 7x + -9x = 55

Combine like terms: 7x + -9x = -2x
-127 + -2x = 55

Solving
-127 + -2x = 55

Solving for variable 'x'.

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

Add '127' to each side of the equation.
-127 + 127 + -2x = 55 + 127

Combine like terms: -127 + 127 = 0
0 + -2x = 55 + 127
-2x = 55 + 127

Combine like terms: 55 + 127 = 182
-2x = 182

Divide each side by '-2'.
x = -91

Simplifying
x = -91

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