3(1.2-1)+3.6=4.2

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Solution for 3(1.2-1)+3.6=4.2 equation: 


Simplifying
3(1.2 + -1) + 3.6 = 4.2

Combine like terms: 1.2 + -1 = 0.2
3(0.2) + 3.6 = 4.2

Multiply 3 * 0.2
0.6 + 3.6 = 4.2

Combine like terms: 0.6 + 3.6 = 4.2
4.2 = 4.2

Add '-4.2' to each side of the equation.
4.2 + -4.2 = 4.2 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 = 4.2 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 = 0.0

Solving
0.0 = 0.0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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