Solve for x
x = -\frac{49}{41} = -1\frac{8}{41} \approx -1.195121951
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Quiz
Linear Equation
5 problems similar to:
\frac{ 3-x }{ 4 } - \frac{ x+4 }{ 5 } =1- \frac{ 5x+7 }{ 2 }
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5\left(3-x\right)-4\left(x+4\right)=20-10\left(5x+7\right)
Multiply both sides of the equation by 20, the least common multiple of 4,5,2.
15-5x-4\left(x+4\right)=20-10\left(5x+7\right)
Use the distributive property to multiply 5 by 3-x.
15-5x-4x-16=20-10\left(5x+7\right)
Use the distributive property to multiply -4 by x+4.
15-9x-16=20-10\left(5x+7\right)
Combine -5x and -4x to get -9x.
-1-9x=20-10\left(5x+7\right)
Subtract 16 from 15 to get -1.
-1-9x=20-50x-70
Use the distributive property to multiply -10 by 5x+7.
-1-9x=-50-50x
Subtract 70 from 20 to get -50.
-1-9x+50x=-50
Add 50x to both sides.
-1+41x=-50
Combine -9x and 50x to get 41x.
41x=-50+1
Add 1 to both sides.
41x=-49
Add -50 and 1 to get -49.
x=\frac{-49}{41}
Divide both sides by 41.
x=-\frac{49}{41}
Fraction \frac{-49}{41} can be rewritten as -\frac{49}{41} by extracting the negative sign.
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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699 * 533
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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}