11=7(x-3)+21

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Solution for 11=7(x-3)+21 equation: 


Simplifying
11 = 7(x + -3) + 21

Reorder the terms:
11 = 7(-3 + x) + 21
11 = (-3 * 7 + x * 7) + 21
11 = (-21 + 7x) + 21

Reorder the terms:
11 = -21 + 21 + 7x

Combine like terms: -21 + 21 = 0
11 = 0 + 7x
11 = 7x

Solving
11 = 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
11 + -7x = 7x + -7x

Combine like terms: 7x + -7x = 0
11 + -7x = 0

Add '-11' to each side of the equation.
11 + -11 + -7x = 0 + -11

Combine like terms: 11 + -11 = 0
0 + -7x = 0 + -11
-7x = 0 + -11

Combine like terms: 0 + -11 = -11
-7x = -11

Divide each side by '-7'.
x = 1.571428571

Simplifying
x = 1.571428571

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