Question

Os sistemas x+y=10 , ax+2y=26 são equivalentes. Calcule a e b
x-y=2 2x-by=-8

Answer 1

Ola Luiz

x + y = 10
x - y = 2

2x = 12
x = 6

6 + y = 10
y = 4

ax + 2y = 26
2x - by = -8

6a + 2*4 = 26
6a = 26 - 8 = 18

a = 3

2*6 - b*4 = -8

4b = 12 + 8 = 20

b = 5