Solve for y
y=2
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4y-28=-5y-10
Use the distributive property to multiply -5 by y+2.
4y-28+5y=-10
Add 5y to both sides.
9y-28=-10
Combine 4y and 5y to get 9y.
9y=-10+28
Add 28 to both sides.
9y=18
Add -10 and 28 to get 18.
y=\frac{18}{9}
Divide both sides by 9.
y=2
Divide 18 by 9 to get 2.
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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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