Solve for x
x=-1
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-7x+4=6-3x+2
Use the distributive property to multiply 3 by 2-x.
-7x+4=8-3x
Add 6 and 2 to get 8.
-7x+4+3x=8
Add 3x to both sides.
-4x+4=8
Combine -7x and 3x to get -4x.
-4x=8-4
Subtract 4 from both sides.
-4x=4
Subtract 4 from 8 to get 4.
x=\frac{4}{-4}
Divide both sides by -4.
x=-1
Divide 4 by -4 to get -1.
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y = 3x + 4
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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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