30+4-7=x+7

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Solution for 30+4-7=x+7 equation:


Simplifying
30 + 4 + -7 = x + 7

Combine like terms: 30 + 4 = 34
34 + -7 = x + 7

Combine like terms: 34 + -7 = 27
27 = x + 7

Reorder the terms:
27 = 7 + x

Solving
27 = 7 + 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.
27 + -1x = 7 + x + -1x

Combine like terms: x + -1x = 0
27 + -1x = 7 + 0
27 + -1x = 7

Add '-27' to each side of the equation.
27 + -27 + -1x = 7 + -27

Combine like terms: 27 + -27 = 0
0 + -1x = 7 + -27
-1x = 7 + -27

Combine like terms: 7 + -27 = -20
-1x = -20

Divide each side by '-1'.
x = 20

Simplifying
x = 20

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