0.40x+0.50(30)=0.20(77)

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Solution for 0.40x+0.50(30)=0.20(77) equation: 


Simplifying
0.40x + 0.50(30) = 0.20(77)

Multiply 0.50 * 30
0.40x + 15 = 0.20(77)

Reorder the terms:
15 + 0.40x = 0.20(77)

Multiply 0.20 * 77
15 + 0.40x = 15.4

Solving
15 + 0.40x = 15.4

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 0.40x = 15.4 + -15

Combine like terms: 15 + -15 = 0
0 + 0.40x = 15.4 + -15
0.40x = 15.4 + -15

Combine like terms: 15.4 + -15 = 0.4
0.40x = 0.4

Divide each side by '0.40'.
x = 1

Simplifying
x = 1

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