Solve for A
A=5
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2A+5-5A=-10
Subtract 5A from both sides.
-3A+5=-10
Combine 2A and -5A to get -3A.
-3A=-10-5
Subtract 5 from both sides.
-3A=-15
Subtract 5 from -10 to get -15.
A=\frac{-15}{-3}
Divide both sides by -3.
A=5
Divide -15 by -3 to get 5.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
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Matrix
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Simultaneous equation
\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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