Solve for x
x = -\frac{13}{11} = -1\frac{2}{11} \approx -1.181818182
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8+12x+4+x+1-2x=0
Use the distributive property to multiply 2+3x by 4.
12+12x+x+1-2x=0
Add 8 and 4 to get 12.
12+13x+1-2x=0
Combine 12x and x to get 13x.
13+13x-2x=0
Add 12 and 1 to get 13.
13+11x=0
Combine 13x and -2x to get 11x.
11x=-13
Subtract 13 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-13}{11}
Divide both sides by 11.
x=-\frac{13}{11}
Fraction \frac{-13}{11} can be rewritten as -\frac{13}{11} by extracting the negative sign.
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y = 3x + 4
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Matrix
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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
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Limits
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