0.40x+0.30(40)=0.20(74)

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Solution for 0.40x+0.30(40)=0.20(74) equation: 


Simplifying
0.40x + 0.30(40) = 0.20(74)

Multiply 0.30 * 40
0.40x + 12 = 0.20(74)

Reorder the terms:
12 + 0.40x = 0.20(74)

Multiply 0.20 * 74
12 + 0.40x = 14.8

Solving
12 + 0.40x = 14.8

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 0.40x = 14.8 + -12

Combine like terms: 12 + -12 = 0
0 + 0.40x = 14.8 + -12
0.40x = 14.8 + -12

Combine like terms: 14.8 + -12 = 2.8
0.40x = 2.8

Divide each side by '0.40'.
x = 7

Simplifying
x = 7

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