.05x+0.07(100-x)=6.2

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Solution for .05x+0.07(100-x)=6.2 equation:


Simplifying
0.05x + 0.07(100 + -1x) = 6.2
0.05x + (100 * 0.07 + -1x * 0.07) = 6.2
0.05x + (7 + -0.07x) = 6.2

Reorder the terms:
7 + 0.05x + -0.07x = 6.2

Combine like terms: 0.05x + -0.07x = -0.02x
7 + -0.02x = 6.2

Solving
7 + -0.02x = 6.2

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + -0.02x = 6.2 + -7

Combine like terms: 7 + -7 = 0
0 + -0.02x = 6.2 + -7
-0.02x = 6.2 + -7

Combine like terms: 6.2 + -7 = -0.8
-0.02x = -0.8

Divide each side by '-0.02'.
x = 40

Simplifying
x = 40

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