.7x+.2x=4.5

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Solution for .7x+.2x=4.5 equation: 


Simplifying
0.7x + 0.2x = 4.5

Combine like terms: 0.7x + 0.2x = 0.9x
0.9x = 4.5

Solving
0.9x = 4.5

Solving for variable 'x'.

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

Divide each side by '0.9'.
x = 5

Simplifying
x = 5

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