Solve for x
x=7
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2x-2+3\left(x+1\right)=4\left(x+2\right)
Use the distributive property to multiply 2 by x-1.
2x-2+3x+3=4\left(x+2\right)
Use the distributive property to multiply 3 by x+1.
5x-2+3=4\left(x+2\right)
Combine 2x and 3x to get 5x.
5x+1=4\left(x+2\right)
Add -2 and 3 to get 1.
5x+1=4x+8
Use the distributive property to multiply 4 by x+2.
5x+1-4x=8
Subtract 4x from both sides.
x+1=8
Combine 5x and -4x to get x.
x=8-1
Subtract 1 from both sides.
x=7
Subtract 1 from 8 to get 7.
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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