7+10-20=x

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Solution for 7+10-20=x equation:


Simplifying
7 + 10 + -20 = x

Combine like terms: 7 + 10 = 17
17 + -20 = x

Combine like terms: 17 + -20 = -3
-3 = x

Solving
-3 = 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.
-3 + -1x = x + -1x

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

Add '3' to each side of the equation.
-3 + 3 + -1x = 0 + 3

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

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

Divide each side by '-1'.
x = -3

Simplifying
x = -3

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