Answer:
6
Step-by-step explanation:
9 x 6 = 54
3 x 6 = 18
54 - 18 = 36
9x-3x=36
6x=36
x=36/6
x= 6
3y+4y=49
7y=49
y= 49/7
y= 7
10r-2r+5=69
8r=69-5
8r=64
r=64/8
r=8
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