4-1=7y

Solution for 4-1=7y equation:

Simplifying
4 + -1 = 7y

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

Solving
3 = 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.
3 + -7y = 7y + -7y

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

Add '-3' to each side of the equation.
3 + -3 + -7y = 0 + -3

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

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

Divide each side by '-7'.
y = 0.4285714286

Simplifying
y = 0.4285714286