Solve for x
x=7
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-6=-\frac{3}{4}\left(x+1\right)
Subtract 5 from -1 to get -6.
-6=-\frac{3}{4}x-\frac{3}{4}
Use the distributive property to multiply -\frac{3}{4} by x+1.
-\frac{3}{4}x-\frac{3}{4}=-6
Swap sides so that all variable terms are on the left hand side.
-\frac{3}{4}x=-6+\frac{3}{4}
Add \frac{3}{4} to both sides.
-\frac{3}{4}x=-\frac{24}{4}+\frac{3}{4}
Convert -6 to fraction -\frac{24}{4}.
-\frac{3}{4}x=\frac{-24+3}{4}
Since -\frac{24}{4} and \frac{3}{4} have the same denominator, add them by adding their numerators.
-\frac{3}{4}x=-\frac{21}{4}
Add -24 and 3 to get -21.
x=-\frac{21}{4}\left(-\frac{4}{3}\right)
Multiply both sides by -\frac{4}{3}, the reciprocal of -\frac{3}{4}.
x=\frac{-21\left(-4\right)}{4\times 3}
Multiply -\frac{21}{4} times -\frac{4}{3} by multiplying numerator times numerator and denominator times denominator.
x=\frac{84}{12}
Do the multiplications in the fraction \frac{-21\left(-4\right)}{4\times 3}.
x=7
Divide 84 by 12 to get 7.
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}