.20x+.45(70)=42.5

Solution for .20x+.45(70)=42.5 equation:

Simplifying
0.20x + 0.45(70) = 42.5

Multiply 0.45 * 70
0.20x + 31.5 = 42.5

Reorder the terms:
31.5 + 0.20x = 42.5

Solving
31.5 + 0.20x = 42.5

Solving for variable 'x'.

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

Add '-31.5' to each side of the equation.
31.5 + -31.5 + 0.20x = 42.5 + -31.5

Combine like terms: 31.5 + -31.5 = 0.0
0.0 + 0.20x = 42.5 + -31.5
0.20x = 42.5 + -31.5

Combine like terms: 42.5 + -31.5 = 11
0.20x = 11

Divide each side by '0.20'.
x = 55

Simplifying
x = 55