2.2=-15.3+7w

Solution for 2.2=-15.3+7w equation:

Simplifying
2.2 = -15.3 + 7w

Solving
2.2 = -15.3 + 7w

Solving for variable 'w'.

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

Add '-7w' to each side of the equation.
2.2 + -7w = -15.3 + 7w + -7w

Combine like terms: 7w + -7w = 0
2.2 + -7w = -15.3 + 0
2.2 + -7w = -15.3

Add '-2.2' to each side of the equation.
2.2 + -2.2 + -7w = -15.3 + -2.2

Combine like terms: 2.2 + -2.2 = 0.0
0.0 + -7w = -15.3 + -2.2
-7w = -15.3 + -2.2

Combine like terms: -15.3 + -2.2 = -17.5
-7w = -17.5

Divide each side by '-7'.
w = 2.5

Simplifying
w = 2.5