13*0.3+0.7*x=10

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Solution for 13*0.3+0.7*x=10 equation: 


Simplifying
13 * 0.3 + 0.7x = 10

Multiply 13 * 0.3
3.9 + 0.7x = 10

Solving
3.9 + 0.7x = 10

Solving for variable 'x'.

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

Add '-3.9' to each side of the equation.
3.9 + -3.9 + 0.7x = 10 + -3.9

Combine like terms: 3.9 + -3.9 = 0.0
0.0 + 0.7x = 10 + -3.9
0.7x = 10 + -3.9

Combine like terms: 10 + -3.9 = 6.1
0.7x = 6.1

Divide each side by '0.7'.
x = 8.714285714

Simplifying
x = 8.714285714

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