7(4y-9)-(8y+8)=

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Solution for 7(4y-9)-(8y+8)= equation:


Simplifying
7(4y + -9) + -1(8y + 8) = 0

Reorder the terms:
7(-9 + 4y) + -1(8y + 8) = 0
(-9 * 7 + 4y * 7) + -1(8y + 8) = 0
(-63 + 28y) + -1(8y + 8) = 0

Reorder the terms:
-63 + 28y + -1(8 + 8y) = 0
-63 + 28y + (8 * -1 + 8y * -1) = 0
-63 + 28y + (-8 + -8y) = 0

Reorder the terms:
-63 + -8 + 28y + -8y = 0

Combine like terms: -63 + -8 = -71
-71 + 28y + -8y = 0

Combine like terms: 28y + -8y = 20y
-71 + 20y = 0

Solving
-71 + 20y = 0

Solving for variable 'y'.

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

Add '71' to each side of the equation.
-71 + 71 + 20y = 0 + 71

Combine like terms: -71 + 71 = 0
0 + 20y = 0 + 71
20y = 0 + 71

Combine like terms: 0 + 71 = 71
20y = 71

Divide each side by '20'.
y = 3.55

Simplifying
y = 3.55

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