Solve for x
x=-2
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x-1=-2x-7
To find the opposite of 2x+7, find the opposite of each term.
x-1+2x=-7
Add 2x to both sides.
3x-1=-7
Combine x and 2x to get 3x.
3x=-7+1
Add 1 to both sides.
3x=-6
Add -7 and 1 to get -6.
x=\frac{-6}{3}
Divide both sides by 3.
x=-2
Divide -6 by 3 to get -2.
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Simultaneous equation
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Limits
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