7+2x-5-x=-21

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Solution for 7+2x-5-x=-21 equation:


Simplifying
7 + 2x + -5 + -1x = -21

Reorder the terms:
7 + -5 + 2x + -1x = -21

Combine like terms: 7 + -5 = 2
2 + 2x + -1x = -21

Combine like terms: 2x + -1x = 1x
2 + 1x = -21

Solving
2 + 1x = -21

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 1x = -21 + -2

Combine like terms: 2 + -2 = 0
0 + 1x = -21 + -2
1x = -21 + -2

Combine like terms: -21 + -2 = -23
1x = -23

Divide each side by '1'.
x = -23

Simplifying
x = -23

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