3y+4=8y-17

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Solution for 3y+4=8y-17 equation:


Simplifying
3y + 4 = 8y + -17

Reorder the terms:
4 + 3y = 8y + -17

Reorder the terms:
4 + 3y = -17 + 8y

Solving
4 + 3y = -17 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
4 + 3y + -8y = -17 + 8y + -8y

Combine like terms: 3y + -8y = -5y
4 + -5y = -17 + 8y + -8y

Combine like terms: 8y + -8y = 0
4 + -5y = -17 + 0
4 + -5y = -17

Add '-4' to each side of the equation.
4 + -4 + -5y = -17 + -4

Combine like terms: 4 + -4 = 0
0 + -5y = -17 + -4
-5y = -17 + -4

Combine like terms: -17 + -4 = -21
-5y = -21

Divide each side by '-5'.
y = 4.2

Simplifying
y = 4.2

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