7-8(y+9)=40

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Solution for 7-8(y+9)=40 equation:


Simplifying
7 + -8(y + 9) = 40

Reorder the terms:
7 + -8(9 + y) = 40
7 + (9 * -8 + y * -8) = 40
7 + (-72 + -8y) = 40

Combine like terms: 7 + -72 = -65
-65 + -8y = 40

Solving
-65 + -8y = 40

Solving for variable 'y'.

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

Add '65' to each side of the equation.
-65 + 65 + -8y = 40 + 65

Combine like terms: -65 + 65 = 0
0 + -8y = 40 + 65
-8y = 40 + 65

Combine like terms: 40 + 65 = 105
-8y = 105

Divide each side by '-8'.
y = -13.125

Simplifying
y = -13.125

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