Solve for x
x = -\frac{9}{5} = -1\frac{4}{5} = -1.8
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1-28-14x=-9-4x
Use the distributive property to multiply -7 by 4+2x.
-27-14x=-9-4x
Subtract 28 from 1 to get -27.
-27-14x+4x=-9
Add 4x to both sides.
-27-10x=-9
Combine -14x and 4x to get -10x.
-10x=-9+27
Add 27 to both sides.
-10x=18
Add -9 and 27 to get 18.
x=\frac{18}{-10}
Divide both sides by -10.
x=-\frac{9}{5}
Reduce the fraction \frac{18}{-10} to lowest terms by extracting and canceling out 2.
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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]
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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 ) }
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Limits
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