3y+15=18-7y

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Solution for 3y+15=18-7y equation:


Simplifying
3y + 15 = 18 + -7y

Reorder the terms:
15 + 3y = 18 + -7y

Solving
15 + 3y = 18 + -7y

Solving for variable 'y'.

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

Add '7y' to each side of the equation.
15 + 3y + 7y = 18 + -7y + 7y

Combine like terms: 3y + 7y = 10y
15 + 10y = 18 + -7y + 7y

Combine like terms: -7y + 7y = 0
15 + 10y = 18 + 0
15 + 10y = 18

Add '-15' to each side of the equation.
15 + -15 + 10y = 18 + -15

Combine like terms: 15 + -15 = 0
0 + 10y = 18 + -15
10y = 18 + -15

Combine like terms: 18 + -15 = 3
10y = 3

Divide each side by '10'.
y = 0.3

Simplifying
y = 0.3

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