Solve for x
x = \frac{43}{9} = 4\frac{7}{9} \approx 4.777777778
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70-10x+x+27=10x+11-x
Use the distributive property to multiply 10 by 7-x.
70-9x+27=10x+11-x
Combine -10x and x to get -9x.
97-9x=10x+11-x
Add 70 and 27 to get 97.
97-9x=9x+11
Combine 10x and -x to get 9x.
97-9x-9x=11
Subtract 9x from both sides.
97-18x=11
Combine -9x and -9x to get -18x.
-18x=11-97
Subtract 97 from both sides.
-18x=-86
Subtract 97 from 11 to get -86.
x=\frac{-86}{-18}
Divide both sides by -18.
x=\frac{43}{9}
Reduce the fraction \frac{-86}{-18} to lowest terms by extracting and canceling out -2.
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y = 3x + 4
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\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 ) }
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Limits
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