Respuesta :

bennionso

Answer: 1. 7,   2. 0,   3. 4,    4. 7,   14

Step-by-step explanation:

1. (3+4)+7=14  3+(4+x)  x=7   14-3+4

2. 15+0=15  15-15=0

3. (4x12)x6=288 Yx(12x6)  12x6=72 288/72= 4

4. (2x7)x5=70 2x(Yx5)  2x5=10  70/10=7 Y=7

5. 14x35=490 490/35=14
^^ what they said on top of my answer !