9+27y-(-7y+27)-21y=-26

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Solution for 9+27y-(-7y+27)-21y=-26 equation:


Simplifying
9 + 27y + -1(-7y + 27) + -21y = -26

Reorder the terms:
9 + 27y + -1(27 + -7y) + -21y = -26
9 + 27y + (27 * -1 + -7y * -1) + -21y = -26
9 + 27y + (-27 + 7y) + -21y = -26

Reorder the terms:
9 + -27 + 27y + 7y + -21y = -26

Combine like terms: 9 + -27 = -18
-18 + 27y + 7y + -21y = -26

Combine like terms: 27y + 7y = 34y
-18 + 34y + -21y = -26

Combine like terms: 34y + -21y = 13y
-18 + 13y = -26

Solving
-18 + 13y = -26

Solving for variable 'y'.

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

Add '18' to each side of the equation.
-18 + 18 + 13y = -26 + 18

Combine like terms: -18 + 18 = 0
0 + 13y = -26 + 18
13y = -26 + 18

Combine like terms: -26 + 18 = -8
13y = -8

Divide each side by '13'.
y = -0.6153846154

Simplifying
y = -0.6153846154

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