0.02x+0.07(100-x)=3

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Solution for 0.02x+0.07(100-x)=3 equation:


Simplifying
0.02x + 0.07(100 + -1x) = 3
0.02x + (100 * 0.07 + -1x * 0.07) = 3
0.02x + (7 + -0.07x) = 3

Reorder the terms:
7 + 0.02x + -0.07x = 3

Combine like terms: 0.02x + -0.07x = -0.05x
7 + -0.05x = 3

Solving
7 + -0.05x = 3

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 + -0.05x = 3 + -7

Combine like terms: 7 + -7 = 0
0 + -0.05x = 3 + -7
-0.05x = 3 + -7

Combine like terms: 3 + -7 = -4
-0.05x = -4

Divide each side by '-0.05'.
x = 80

Simplifying
x = 80

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