123-87=38y-47y

Solution for 123-87=38y-47y equation:

Simplifying
123 + -87 = 38y + -47y

Combine like terms: 123 + -87 = 36
36 = 38y + -47y

Combine like terms: 38y + -47y = -9y
36 = -9y

Solving
36 = -9y

Solving for variable 'y'.

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

Add '9y' to each side of the equation.
36 + 9y = -9y + 9y

Combine like terms: -9y + 9y = 0
36 + 9y = 0

Add '-36' to each side of the equation.
36 + -36 + 9y = 0 + -36

Combine like terms: 36 + -36 = 0
0 + 9y = 0 + -36
9y = 0 + -36

Combine like terms: 0 + -36 = -36
9y = -36

Divide each side by '9'.
y = -4

Simplifying
y = -4