7x=30+40

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Solution for 7x=30+40 equation: 


Simplifying
7x = 30 + 40

Combine like terms: 30 + 40 = 70
7x = 70

Solving
7x = 70

Solving for variable 'x'.

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

Divide each side by '7'.
x = 10

Simplifying
x = 10

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