3(x+7)=5-x

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Solution for 3(x+7)=5-x equation:


Simplifying
3(x + 7) = 5 + -1x

Reorder the terms:
3(7 + x) = 5 + -1x
(7 * 3 + x * 3) = 5 + -1x
(21 + 3x) = 5 + -1x

Solving
21 + 3x = 5 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
21 + 3x + x = 5 + -1x + x

Combine like terms: 3x + x = 4x
21 + 4x = 5 + -1x + x

Combine like terms: -1x + x = 0
21 + 4x = 5 + 0
21 + 4x = 5

Add '-21' to each side of the equation.
21 + -21 + 4x = 5 + -21

Combine like terms: 21 + -21 = 0
0 + 4x = 5 + -21
4x = 5 + -21

Combine like terms: 5 + -21 = -16
4x = -16

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

Simplifying
x = -4

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