0.40x+0.20(20)=0.20(42)

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Solution for 0.40x+0.20(20)=0.20(42) equation: 


Simplifying
0.40x + 0.20(20) = 0.20(42)

Multiply 0.20 * 20
0.40x + 4 = 0.20(42)

Reorder the terms:
4 + 0.40x = 0.20(42)

Multiply 0.20 * 42
4 + 0.40x = 8.4

Solving
4 + 0.40x = 8.4

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 0.40x = 8.4 + -4

Combine like terms: 4 + -4 = 0
0 + 0.40x = 8.4 + -4
0.40x = 8.4 + -4

Combine like terms: 8.4 + -4 = 4.4
0.40x = 4.4

Divide each side by '0.40'.
x = 11

Simplifying
x = 11

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