Solve for k
k>3
Quiz
Algebra
5 problems similar to:
4 \times \frac { 3 k + 1 } { 13 } + 7 \frac { 2 k - 8 } { 13 } > 2
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4\left(3k+1\right)+7\left(2k-8\right)>26
Multiply both sides of the equation by 13. Since 13 is positive, the inequality direction remains the same.
12k+4+7\left(2k-8\right)>26
Use the distributive property to multiply 4 by 3k+1.
12k+4+14k-56>26
Use the distributive property to multiply 7 by 2k-8.
26k+4-56>26
Combine 12k and 14k to get 26k.
26k-52>26
Subtract 56 from 4 to get -52.
26k>26+52
Add 52 to both sides.
26k>78
Add 26 and 52 to get 78.
k>\frac{78}{26}
Divide both sides by 26. Since 26 is positive, the inequality direction remains the same.
k>3
Divide 78 by 26 to get 3.
Examples
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699 * 533
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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}