10y-30=40

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Solution for 10y-30=40 equation: 


Simplifying
10y + -30 = 40

Reorder the terms:
-30 + 10y = 40

Solving
-30 + 10y = 40

Solving for variable 'y'.

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

Add '30' to each side of the equation.
-30 + 30 + 10y = 40 + 30

Combine like terms: -30 + 30 = 0
0 + 10y = 40 + 30
10y = 40 + 30

Combine like terms: 40 + 30 = 70
10y = 70

Divide each side by '10'.
y = 7

Simplifying
y = 7

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