Solve for h
h=7x+2
Solve for x
x=\frac{h-2}{7}
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h=4x+3x+2
Multiply 1 and 3 to get 3.
h=7x+2
Combine 4x and 3x to get 7x.
h=4x+3x+2
Multiply 1 and 3 to get 3.
h=7x+2
Combine 4x and 3x to get 7x.
7x+2=h
Swap sides so that all variable terms are on the left hand side.
7x=h-2
Subtract 2 from both sides.
\frac{7x}{7}=\frac{h-2}{7}
Divide both sides by 7.
x=\frac{h-2}{7}
Dividing by 7 undoes the multiplication by 7.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
Arithmetic
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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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