79(.50)+x(.50)=80

Solution for 79(.50)+x(.50)=80 equation:

Simplifying
79(0.50) + x(0.50) = 80

Multiply 79 * 0.50
39.5 + x(0.50) = 80

Reorder the terms for easier multiplication:
39.5 + 0.50x = 80

Solving
39.5 + 0.50x = 80

Solving for variable 'x'.

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

Add '-39.5' to each side of the equation.
39.5 + -39.5 + 0.50x = 80 + -39.5

Combine like terms: 39.5 + -39.5 = 0.0
0.0 + 0.50x = 80 + -39.5
0.50x = 80 + -39.5

Combine like terms: 80 + -39.5 = 40.5
0.50x = 40.5

Divide each side by '0.50'.
x = 81

Simplifying
x = 81