.70x+.30(70)=.35(86)

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Solution for .70x+.30(70)=.35(86) equation: 


Simplifying
0.70x + 0.30(70) = 0.35(86)

Multiply 0.30 * 70
0.70x + 21 = 0.35(86)

Reorder the terms:
21 + 0.70x = 0.35(86)

Multiply 0.35 * 86
21 + 0.70x = 30.1

Solving
21 + 0.70x = 30.1

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 0.70x = 30.1 + -21

Combine like terms: 21 + -21 = 0
0 + 0.70x = 30.1 + -21
0.70x = 30.1 + -21

Combine like terms: 30.1 + -21 = 9.1
0.70x = 9.1

Divide each side by '0.70'.
x = 13

Simplifying
x = 13

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