-2y+7(2y+20)=20

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Solution for -2y+7(2y+20)=20 equation:


Simplifying
-2y + 7(2y + 20) = 20

Reorder the terms:
-2y + 7(20 + 2y) = 20
-2y + (20 * 7 + 2y * 7) = 20
-2y + (140 + 14y) = 20

Reorder the terms:
140 + -2y + 14y = 20

Combine like terms: -2y + 14y = 12y
140 + 12y = 20

Solving
140 + 12y = 20

Solving for variable 'y'.

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

Add '-140' to each side of the equation.
140 + -140 + 12y = 20 + -140

Combine like terms: 140 + -140 = 0
0 + 12y = 20 + -140
12y = 20 + -140

Combine like terms: 20 + -140 = -120
12y = -120

Divide each side by '12'.
y = -10

Simplifying
y = -10

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