-(10y-7)+2(4y+9)=

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Solution for -(10y-7)+2(4y+9)= equation:


Simplifying
-1(10y + -7) + 2(4y + 9) = 0

Reorder the terms:
-1(-7 + 10y) + 2(4y + 9) = 0
(-7 * -1 + 10y * -1) + 2(4y + 9) = 0
(7 + -10y) + 2(4y + 9) = 0

Reorder the terms:
7 + -10y + 2(9 + 4y) = 0
7 + -10y + (9 * 2 + 4y * 2) = 0
7 + -10y + (18 + 8y) = 0

Reorder the terms:
7 + 18 + -10y + 8y = 0

Combine like terms: 7 + 18 = 25
25 + -10y + 8y = 0

Combine like terms: -10y + 8y = -2y
25 + -2y = 0

Solving
25 + -2y = 0

Solving for variable 'y'.

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

Add '-25' to each side of the equation.
25 + -25 + -2y = 0 + -25

Combine like terms: 25 + -25 = 0
0 + -2y = 0 + -25
-2y = 0 + -25

Combine like terms: 0 + -25 = -25
-2y = -25

Divide each side by '-2'.
y = 12.5

Simplifying
y = 12.5

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