Question

multimile A={5,7,9,12} si B={4x+ 1,4x+3,4y+ 1,4z} sunt egale

Answer 1

4x+1=5
4x=4 => x=1
4x+3=7
4x=4 => x=1
4y+1=9
4y=8 => y=2
4z=12 => z=3
A={5, 7, 9, 12}
B={4×1+1, 4×1+3, 4×2+1, 4×3}
B={5, 7, 9, 12}