7s-(3s+1)=4(s+s)

Solution for 7s-(3s+1)=4(s+s) equation:

Simplifying
7s + -1(3s + 1) = 4(s + s)

Reorder the terms:
7s + -1(1 + 3s) = 4(s + s)
7s + (1 * -1 + 3s * -1) = 4(s + s)
7s + (-1 + -3s) = 4(s + s)

Reorder the terms:
-1 + 7s + -3s = 4(s + s)

Combine like terms: 7s + -3s = 4s
-1 + 4s = 4(s + s)

Combine like terms: s + s = 2s
-1 + 4s = 4(2s)

Remove parenthesis around (2s)
-1 + 4s = 4 * 2s

Multiply 4 * 2
-1 + 4s = 8s

Solving
-1 + 4s = 8s

Solving for variable 's'.

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

Add '-8s' to each side of the equation.
-1 + 4s + -8s = 8s + -8s

Combine like terms: 4s + -8s = -4s
-1 + -4s = 8s + -8s

Combine like terms: 8s + -8s = 0
-1 + -4s = 0

Add '1' to each side of the equation.
-1 + 1 + -4s = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -4s = 0 + 1
-4s = 0 + 1

Combine like terms: 0 + 1 = 1
-4s = 1

Divide each side by '-4'.
s = -0.25

Simplifying
s = -0.25