-20=5+7(y+9)

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Solution for -20=5+7(y+9) equation:


Simplifying
-20 = 5 + 7(y + 9)

Reorder the terms:
-20 = 5 + 7(9 + y)
-20 = 5 + (9 * 7 + y * 7)
-20 = 5 + (63 + 7y)

Combine like terms: 5 + 63 = 68
-20 = 68 + 7y

Solving
-20 = 68 + 7y

Solving for variable 'y'.

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

Add '-7y' to each side of the equation.
-20 + -7y = 68 + 7y + -7y

Combine like terms: 7y + -7y = 0
-20 + -7y = 68 + 0
-20 + -7y = 68

Add '20' to each side of the equation.
-20 + 20 + -7y = 68 + 20

Combine like terms: -20 + 20 = 0
0 + -7y = 68 + 20
-7y = 68 + 20

Combine like terms: 68 + 20 = 88
-7y = 88

Divide each side by '-7'.
y = -12.57142857

Simplifying
y = -12.57142857

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