1.
a)
[tex]7m = t | \div 7 \\ m = \frac{t}{7} [/tex]
b)
[tex]pm = ws | \div p \\ m = \frac{ws}{p} [/tex]
c)
[tex] \frac{8}{m} = \frac{10}{t} \\ 8t = 10m | \div 10 \\ m = \frac{8t}{10} [/tex]
2.
a)
[tex]3a + 7 = t | - 7 \\ 3a = t - 7 | \div 3 \\ a = \frac{t - 7}{3} [/tex]
b)
[tex]k + 6a = c | - k \\ 6a = c - k | \div 6 \\ a = \frac{c - k}{6} [/tex]
c)
[tex]k - ma = c | - k \\ - ma = c - k | \div ( - m) \\ a = - \frac{c - k}{m} [/tex]