0.3*9+0.7*x=5.5

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Solution for 0.3*9+0.7*x=5.5 equation: 


Simplifying
0.3 * 9 + 0.7x = 5.5

Multiply 0.3 * 9
2.7 + 0.7x = 5.5

Solving
2.7 + 0.7x = 5.5

Solving for variable 'x'.

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

Add '-2.7' to each side of the equation.
2.7 + -2.7 + 0.7x = 5.5 + -2.7

Combine like terms: 2.7 + -2.7 = 0.0
0.0 + 0.7x = 5.5 + -2.7
0.7x = 5.5 + -2.7

Combine like terms: 5.5 + -2.7 = 2.8
0.7x = 2.8

Divide each side by '0.7'.
x = 4

Simplifying
x = 4

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