7+2x=28+-1x

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Solution for 7+2x=28+-1x equation:


Simplifying
7 + 2x = 28 + -1x

Solving
7 + 2x = 28 + -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.
7 + 2x + x = 28 + -1x + x

Combine like terms: 2x + x = 3x
7 + 3x = 28 + -1x + x

Combine like terms: -1x + x = 0
7 + 3x = 28 + 0
7 + 3x = 28

Add '-7' to each side of the equation.
7 + -7 + 3x = 28 + -7

Combine like terms: 7 + -7 = 0
0 + 3x = 28 + -7
3x = 28 + -7

Combine like terms: 28 + -7 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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