Solve for x
x=3.6
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13.2-5.7-x=3.9
To find the opposite of 5.7+x, find the opposite of each term.
7.5-x=3.9
Subtract 5.7 from 13.2 to get 7.5.
-x=3.9-7.5
Subtract 7.5 from both sides.
-x=-3.6
Subtract 7.5 from 3.9 to get -3.6.
x=3.6
Multiply both sides by -1.
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