.02x+.09(100-x)=6.2

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Solution for .02x+.09(100-x)=6.2 equation:


Simplifying
0.02x + 0.09(100 + -1x) = 6.2
0.02x + (100 * 0.09 + -1x * 0.09) = 6.2
0.02x + (9 + -0.09x) = 6.2

Reorder the terms:
9 + 0.02x + -0.09x = 6.2

Combine like terms: 0.02x + -0.09x = -0.07x
9 + -0.07x = 6.2

Solving
9 + -0.07x = 6.2

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -0.07x = 6.2 + -9

Combine like terms: 9 + -9 = 0
0 + -0.07x = 6.2 + -9
-0.07x = 6.2 + -9

Combine like terms: 6.2 + -9 = -2.8
-0.07x = -2.8

Divide each side by '-0.07'.
x = 40

Simplifying
x = 40

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