10y+20=30y+40

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Solution for 10y+20=30y+40 equation:


Simplifying
10y + 20 = 30y + 40

Reorder the terms:
20 + 10y = 30y + 40

Reorder the terms:
20 + 10y = 40 + 30y

Solving
20 + 10y = 40 + 30y

Solving for variable 'y'.

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

Add '-30y' to each side of the equation.
20 + 10y + -30y = 40 + 30y + -30y

Combine like terms: 10y + -30y = -20y
20 + -20y = 40 + 30y + -30y

Combine like terms: 30y + -30y = 0
20 + -20y = 40 + 0
20 + -20y = 40

Add '-20' to each side of the equation.
20 + -20 + -20y = 40 + -20

Combine like terms: 20 + -20 = 0
0 + -20y = 40 + -20
-20y = 40 + -20

Combine like terms: 40 + -20 = 20
-20y = 20

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

Simplifying
y = -1

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