Question

ecuasiones

3a+b=22

4a-3b=-1​

Answer 1

$3a + b = 22 \\ 3a =22 - b \\ a = \frac{22}{3} - \frac{1}{3} b$

$4a - 3b = - 1 \\ 4a = - 1 + 3b \\ a = - \frac{1}{4} + \frac{3}{4} b$