-234 = 3x, properly written 3x = -234, is no different from any other algebraic equation even though the result is a negative number. Divide both sides by 3 to find the solution.
3x = -234
x = -78
(- 234/3 = - 78)
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3x-6y=30 y=34-6x substitute the the value for y from the second equation into the first equation. 3x-6(34-6x)=30 3x-204+36x=30 39x-204=30 39x=234 x=234/39 x=6 Substitute this value of x into equation 2. y=34-6(6) y=34-36 y=-2
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An equation.
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