Solve for x
x=-\frac{2}{3}\approx -0.666666667
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4-3x-1=5
To find the opposite of 3x+1, find the opposite of each term.
3-3x=5
Subtract 1 from 4 to get 3.
-3x=5-3
Subtract 3 from both sides.
-3x=2
Subtract 3 from 5 to get 2.
x=\frac{2}{-3}
Divide both sides by -3.
x=-\frac{2}{3}
Fraction \frac{2}{-3} can be rewritten as -\frac{2}{3} by extracting the negative sign.
Examples
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Linear equation
y = 3x + 4
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Matrix
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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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