Question

Linear equations
a+2b=-1
2a+3b=23​

Answer 1

.2a + 4b = -2

2a + 3b = 23

We subtract..

0 + b = -25

a + (2×-25) = -1

a - 50 = -1

a = -1+50

a = 49.

a = 49

b = -25.

Explanation:

proving my answer.

a + 2b = -1

49 + (2×-25) = -1

49 - 50 = -1

2a + 3b = 23

(2×49) + (3×-25) = 23

98 + (-75) = 23

98 - 75 = 23