7y-3=12y+42

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Solution for 7y-3=12y+42 equation:


Simplifying
7y + -3 = 12y + 42

Reorder the terms:
-3 + 7y = 12y + 42

Reorder the terms:
-3 + 7y = 42 + 12y

Solving
-3 + 7y = 42 + 12y

Solving for variable 'y'.

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

Add '-12y' to each side of the equation.
-3 + 7y + -12y = 42 + 12y + -12y

Combine like terms: 7y + -12y = -5y
-3 + -5y = 42 + 12y + -12y

Combine like terms: 12y + -12y = 0
-3 + -5y = 42 + 0
-3 + -5y = 42

Add '3' to each side of the equation.
-3 + 3 + -5y = 42 + 3

Combine like terms: -3 + 3 = 0
0 + -5y = 42 + 3
-5y = 42 + 3

Combine like terms: 42 + 3 = 45
-5y = 45

Divide each side by '-5'.
y = -9

Simplifying
y = -9

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