0.3(0.3)+0.4y=3.5

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Solution for 0.3(0.3)+0.4y=3.5 equation: 


Simplifying
0.3(0.3) + 0.4y = 3.5

Multiply 0.3 * 0.3
0.09 + 0.4y = 3.5

Solving
0.09 + 0.4y = 3.5

Solving for variable 'y'.

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

Add '-0.09' to each side of the equation.
0.09 + -0.09 + 0.4y = 3.5 + -0.09

Combine like terms: 0.09 + -0.09 = 0.00
0.00 + 0.4y = 3.5 + -0.09
0.4y = 3.5 + -0.09

Combine like terms: 3.5 + -0.09 = 3.41
0.4y = 3.41

Divide each side by '0.4'.
y = 8.525

Simplifying
y = 8.525

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