8y+4=15y-9

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Solution for 8y+4=15y-9 equation:


Simplifying
8y + 4 = 15y + -9

Reorder the terms:
4 + 8y = 15y + -9

Reorder the terms:
4 + 8y = -9 + 15y

Solving
4 + 8y = -9 + 15y

Solving for variable 'y'.

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

Add '-15y' to each side of the equation.
4 + 8y + -15y = -9 + 15y + -15y

Combine like terms: 8y + -15y = -7y
4 + -7y = -9 + 15y + -15y

Combine like terms: 15y + -15y = 0
4 + -7y = -9 + 0
4 + -7y = -9

Add '-4' to each side of the equation.
4 + -4 + -7y = -9 + -4

Combine like terms: 4 + -4 = 0
0 + -7y = -9 + -4
-7y = -9 + -4

Combine like terms: -9 + -4 = -13
-7y = -13

Divide each side by '-7'.
y = 1.857142857

Simplifying
y = 1.857142857

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