Solve for x
x=1
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3x+4x-8=-1
Use the distributive property to multiply 4 by x-2.
7x-8=-1
Combine 3x and 4x to get 7x.
7x=-1+8
Add 8 to both sides.
7x=7
Add -1 and 8 to get 7.
x=\frac{7}{7}
Divide both sides by 7.
x=1
Divide 7 by 7 to get 1.
Examples
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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
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Limits
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