m+m+50+3(m+50)=1000

Solution for m+m+50+3(m+50)=1000 equation:

Simplifying
m + m + 50 + 3(m + 50) = 1000

Reorder the terms:
m + m + 50 + 3(50 + m) = 1000
m + m + 50 + (50 * 3 + m * 3) = 1000
m + m + 50 + (150 + 3m) = 1000

Reorder the terms:
50 + 150 + m + m + 3m = 1000

Combine like terms: 50 + 150 = 200
200 + m + m + 3m = 1000

Combine like terms: m + m = 2m
200 + 2m + 3m = 1000

Combine like terms: 2m + 3m = 5m
200 + 5m = 1000

Solving
200 + 5m = 1000

Solving for variable 'm'.

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

Add '-200' to each side of the equation.
200 + -200 + 5m = 1000 + -200

Combine like terms: 200 + -200 = 0
0 + 5m = 1000 + -200
5m = 1000 + -200

Combine like terms: 1000 + -200 = 800
5m = 800

Divide each side by '5'.
m = 160

Simplifying
m = 160