Question

me ajudem por favor a+b=9, 2a/b+1=3

Answer 1

2a/b + 1 = 3
2a/b = 3 - 1
2a/b = 2
2a = 2b
a = b

a + b = 9
b + b = 9
2b = 9
b = 9/2

a = b
a = 9/2