Solve for a
a=-5
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-16-14a-21=23-2a
Use the distributive property to multiply -7 by 2a+3.
-37-14a=23-2a
Subtract 21 from -16 to get -37.
-37-14a+2a=23
Add 2a to both sides.
-37-12a=23
Combine -14a and 2a to get -12a.
-12a=23+37
Add 37 to both sides.
-12a=60
Add 23 and 37 to get 60.
a=\frac{60}{-12}
Divide both sides by -12.
a=-5
Divide 60 by -12 to get -5.
Examples
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y = 3x + 4
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Matrix
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\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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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