.4(36)+.4(87)+.2(x)=100

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Solution for .4(36)+.4(87)+.2(x)=100 equation:


Simplifying
0.4(36) + 0.4(87) + 0.2(x) = 100

Multiply 0.4 * 36
14.4 + 0.4(87) + 0.2(x) = 100

Multiply 0.4 * 87
14.4 + 34.8 + 0.2(x) = 100

Combine like terms: 14.4 + 34.8 = 49.2
49.2 + 0.2x = 100

Solving
49.2 + 0.2x = 100

Solving for variable 'x'.

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

Add '-49.2' to each side of the equation.
49.2 + -49.2 + 0.2x = 100 + -49.2

Combine like terms: 49.2 + -49.2 = 0.0
0.0 + 0.2x = 100 + -49.2
0.2x = 100 + -49.2

Combine like terms: 100 + -49.2 = 50.8
0.2x = 50.8

Divide each side by '0.2'.
x = 254

Simplifying
x = 254

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