Solve for x
x=1
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5x-3-\left(-5x\right)=7x
To find the opposite of 3-5x, find the opposite of each term.
5x-3+5x=7x
The opposite of -5x is 5x.
10x-3=7x
Combine 5x and 5x to get 10x.
10x-3-7x=0
Subtract 7x from both sides.
3x-3=0
Combine 10x and -7x to get 3x.
3x=3
Add 3 to both sides. Anything plus zero gives itself.
x=\frac{3}{3}
Divide both sides by 3.
x=1
Divide 3 by 3 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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