1.a)
[tex]k + 5 = z[/tex]
[tex]k = z - 5[/tex]
b)
[tex]k - 6 = y[/tex]
[tex]k = y + 6[/tex]
c)
[tex]8 - k = x[/tex]
[tex] - k = x - 8 | \times ( - 1)| [/tex]
[tex]k = - x + 8[/tex]
d)
[tex]k + w = m + t[/tex]
[tex]k = m + t - w[/tex]
2.a)
[tex]3z = k | \div 3| [/tex]
[tex]z = \frac{k}{3} [/tex]
b)
[tex]z \times 7 = l | \div 7| [/tex]
[tex]z = \frac{l}{7} [/tex]
c)
[tex]m \times z = 10 | \div m| [/tex]
[tex]z = \frac{10}{m} [/tex]
d)
[tex]a \times z = c | \div a| [/tex]
[tex]z = \frac{c}{a} [/tex]
3.a)
[tex]t \div 9 = a | \div 9| [/tex]
[tex]t = \frac{a}{9} [/tex]
b)
[tex]t = r[/tex]
c)
[tex]t = 3[/tex]
d)
[tex]t \div d = y | \times d| [/tex]
[tex]t = dy[/tex]
