.5*90+.5x=80

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Solution for .5*90+.5x=80 equation:


Simplifying
0.5 * 90 + 0.5x = 80

Multiply 0.5 * 90
45 + 0.5x = 80

Solving
45 + 0.5x = 80

Solving for variable 'x'.

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

Add '-45' to each side of the equation.
45 + -45 + 0.5x = 80 + -45

Combine like terms: 45 + -45 = 0
0 + 0.5x = 80 + -45
0.5x = 80 + -45

Combine like terms: 80 + -45 = 35
0.5x = 35

Divide each side by '0.5'.
x = 70

Simplifying
x = 70

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