
Joana F.
asked 09/11/19What is rhe answer to y=-i+2i-3y=-18
1 Expert Answer

Nathan B. answered 09/11/19
Elementary and Algebraic skilled
We have a value for y (as y not only equals the equation, but the constant), so let's plug that into the equation:
-i + 2i - 3(-18) = -18
Combine like terms:
i - 3(-18) = -18
Multiply:
i + 54 = -18
Subtract 54 from both sides:
i = -18 - 54
i = -72
check:
-(-72) + 2(-72) - 3(-18) = -18
72 - 144 + 54 = -18
-72 + 54 = -18
-18 = -18
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Paul M.
09/11/19