21-11=5(x-9)

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Solution for 21-11=5(x-9) equation:


Simplifying
21 + -11 = 5(x + -9)

Combine like terms: 21 + -11 = 10
10 = 5(x + -9)

Reorder the terms:
10 = 5(-9 + x)
10 = (-9 * 5 + x * 5)
10 = (-45 + 5x)

Solving
10 = -45 + 5x

Solving for variable 'x'.

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

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

Combine like terms: 5x + -5x = 0
10 + -5x = -45 + 0
10 + -5x = -45

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

Combine like terms: 10 + -10 = 0
0 + -5x = -45 + -10
-5x = -45 + -10

Combine like terms: -45 + -10 = -55
-5x = -55

Divide each side by '-5'.
x = 11

Simplifying
x = 11

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