2(5)-9=y

Solution for 2(5)-9=y equation:

Simplifying
2(5) + -9 = y

Multiply 2 * 5
10 + -9 = y

Combine like terms: 10 + -9 = 1
1 = y

Solving
1 = y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
1 + -1y = y + -1y

Combine like terms: y + -1y = 0
1 + -1y = 0

Add '-1' to each side of the equation.
1 + -1 + -1y = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1y = 0 + -1
-1y = 0 + -1

Combine like terms: 0 + -1 = -1
-1y = -1

Divide each side by '-1'.
y = 1

Simplifying
y = 1