Question

ayuda
84-39w=3w
4b-83=2b+19
m-9=2m/7

Answer 1

$84 - 39w = 3w \\ - 39w - 3w = - 84 \\ - 42w = - 84 \\ w = - 84 \div - 42 \\ w = 2$

$4b - 83 = 2b + 19 \\ 4b - 2b = 19 + 83 \\ 2b = 102 \\ b = 102 \div 2 \\ b = 51$

$m - 9 = \frac{2}{7} m \\ \\ 7(m - 9) = 7 \times \frac{2}{7} m \\ \\ 7m - 63 = \frac{14}{7} m \\ 7m - 63 = 2m \\ 7m - 2m = 63 \\ \\ 5m = 63 \\ m = \frac{63}{5}$