Solve for k
k=-\frac{7x}{8}+a
Solve for a
a=\frac{7x}{8}+k
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k=a-x\times \frac{7}{8}
Subtract x\times \frac{7}{8} from both sides.
k=a-\frac{7}{8}x
Multiply -1 and \frac{7}{8} to get -\frac{7}{8}.
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
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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