Solve for x
x = -\frac{7}{4} = -1\frac{3}{4} = -1.75
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2\left(3x+5\right)-\left(2x-1\right)=4
Multiply both sides of the equation by 4, the least common multiple of 2,4.
6x+10-\left(2x-1\right)=4
Use the distributive property to multiply 2 by 3x+5.
6x+10-2x-\left(-1\right)=4
To find the opposite of 2x-1, find the opposite of each term.
6x+10-2x+1=4
The opposite of -1 is 1.
4x+10+1=4
Combine 6x and -2x to get 4x.
4x+11=4
Add 10 and 1 to get 11.
4x=4-11
Subtract 11 from both sides.
4x=-7
Subtract 11 from 4 to get -7.
x=\frac{-7}{4}
Divide both sides by 4.
x=-\frac{7}{4}
Fraction \frac{-7}{4} can be rewritten as -\frac{7}{4} by extracting the negative sign.
Examples
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y = 3x + 4
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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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}