7(x-11)-3x=21

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


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

Reorder the terms:
7(-11 + x) + -3x = 21
(-11 * 7 + x * 7) + -3x = 21
(-77 + 7x) + -3x = 21

Combine like terms: 7x + -3x = 4x
-77 + 4x = 21

Solving
-77 + 4x = 21

Solving for variable 'x'.

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

Add '77' to each side of the equation.
-77 + 77 + 4x = 21 + 77

Combine like terms: -77 + 77 = 0
0 + 4x = 21 + 77
4x = 21 + 77

Combine like terms: 21 + 77 = 98
4x = 98

Divide each side by '4'.
x = 24.5

Simplifying
x = 24.5

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