The problem is to solve the following equation for $k$: $\frac{k}{3} + 4 - 5k = -2k$

AlgebraLinear EquationsEquation SolvingFractionsAlgebraic Manipulation
2025/3/24

1. Problem Description

The problem is to solve the following equation for kk:
k3+45k=2k\frac{k}{3} + 4 - 5k = -2k

2. Solution Steps

First, combine the kk terms on the left side of the equation:
k35k+4=2k\frac{k}{3} - 5k + 4 = -2k
To combine the kk terms, rewrite 5k5k as 15k3\frac{15k}{3}:
k315k3+4=2k\frac{k}{3} - \frac{15k}{3} + 4 = -2k
Combine the fractions:
k15k3+4=2k\frac{k - 15k}{3} + 4 = -2k
14k3+4=2k\frac{-14k}{3} + 4 = -2k
Subtract 4 from both sides of the equation:
14k3=2k4\frac{-14k}{3} = -2k - 4
Multiply both sides of the equation by 3:
3(14k3)=3(2k4)3(\frac{-14k}{3}) = 3(-2k - 4)
14k=6k12-14k = -6k - 12
Add 6k6k to both sides of the equation:
14k+6k=6k12+6k-14k + 6k = -6k - 12 + 6k
8k=12-8k = -12
Divide both sides by -8:
8k8=128\frac{-8k}{-8} = \frac{-12}{-8}
k=128k = \frac{12}{8}
Simplify the fraction:
k=32k = \frac{3}{2}

3. Final Answer

k=32k = \frac{3}{2}

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