[tex]- \frac{7}{8} k[/tex] = 21
First, simplify [tex] \frac{7}{8} k[/tex] to [tex] \frac{7k}{8} [/tex] / Your problem should look like: [tex] -\frac{7k}{8} [/tex] = 21
Second, multiply both sides by 8. / Your problem should look like: -7k = 167
Third, divide both sides by -7. / Your problem should look like: k = [tex] \frac{168}{-7} [/tex]
Fourth, simplify [tex] \frac{168}{-7} [/tex] to [tex] \frac{168}{7} [/tex] / Your problem should look like: k = [tex]- \frac{168}{7} [/tex]
Fifth, simplify [tex] \frac{168}{7} [/tex] to 24. / Your problem should look like: k = -24
Answer: k = -24
