3(7-x)=x+11

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


Simplifying
3(7 + -1x) = x + 11
(7 * 3 + -1x * 3) = x + 11
(21 + -3x) = x + 11

Reorder the terms:
21 + -3x = 11 + x

Solving
21 + -3x = 11 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
21 + -3x + -1x = 11 + x + -1x

Combine like terms: -3x + -1x = -4x
21 + -4x = 11 + x + -1x

Combine like terms: x + -1x = 0
21 + -4x = 11 + 0
21 + -4x = 11

Add '-21' to each side of the equation.
21 + -21 + -4x = 11 + -21

Combine like terms: 21 + -21 = 0
0 + -4x = 11 + -21
-4x = 11 + -21

Combine like terms: 11 + -21 = -10
-4x = -10

Divide each side by '-4'.
x = 2.5

Simplifying
x = 2.5

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