Question

Ax+b=22
2ax-b=23

berapakah nilai a dan b?

Answer 1

3a =45 a = 15 15+b = 22 b = 7

Answer 2

Ax+b = 22
2ax-b= 23+
3 ax = 45
ax = 15 
ax+b = 22
b = 22-15
b= 7
jadi a=15 dan b=7