5y-1+2y=3

Solution for 5y-1+2y=3 equation:

Simplifying
5y + -1 + 2y = 3

Reorder the terms:
-1 + 5y + 2y = 3

Combine like terms: 5y + 2y = 7y
-1 + 7y = 3

Solving
-1 + 7y = 3

Solving for variable 'y'.

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

Add '1' to each side of the equation.
-1 + 1 + 7y = 3 + 1

Combine like terms: -1 + 1 = 0
0 + 7y = 3 + 1
7y = 3 + 1

Combine like terms: 3 + 1 = 4
7y = 4

Divide each side by '7'.
y = 0.5714285714

Simplifying
y = 0.5714285714