2.6=5.2(3.4+m)

Solution for 2.6=5.2(3.4+m) equation:

Simplifying
2.6 = 5.2(3.4 + m)
2.6 = (3.4 * 5.2 + m * 5.2)
2.6 = (17.68 + 5.2m)

Solving
2.6 = 17.68 + 5.2m

Solving for variable 'm'.

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

Add '-5.2m' to each side of the equation.
2.6 + -5.2m = 17.68 + 5.2m + -5.2m

Combine like terms: 5.2m + -5.2m = 0.0
2.6 + -5.2m = 17.68 + 0.0
2.6 + -5.2m = 17.68

Add '-2.6' to each side of the equation.
2.6 + -2.6 + -5.2m = 17.68 + -2.6

Combine like terms: 2.6 + -2.6 = 0.0
0.0 + -5.2m = 17.68 + -2.6
-5.2m = 17.68 + -2.6

Combine like terms: 17.68 + -2.6 = 15.08
-5.2m = 15.08

Divide each side by '-5.2'.
m = -2.9

Simplifying
m = -2.9