15y-20(7)=12y

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Solution for 15y-20(7)=12y equation:


Simplifying
15y + -20(7) = 12y

Multiply -20 * 7
15y + -140 = 12y

Reorder the terms:
-140 + 15y = 12y

Solving
-140 + 15y = 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.
-140 + 15y + -12y = 12y + -12y

Combine like terms: 15y + -12y = 3y
-140 + 3y = 12y + -12y

Combine like terms: 12y + -12y = 0
-140 + 3y = 0

Add '140' to each side of the equation.
-140 + 140 + 3y = 0 + 140

Combine like terms: -140 + 140 = 0
0 + 3y = 0 + 140
3y = 0 + 140

Combine like terms: 0 + 140 = 140
3y = 140

Divide each side by '3'.
y = 46.66666667

Simplifying
y = 46.66666667

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