Ayoo! help po plsss
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X+7, X=10
X+7
10+7
17
Y²-1, y=3
Y²-1
(3)²-1
9-1
8
3. a+2b , if a=-1 b=4
a+2b
(-1)+2(4)
-1+8
7
4. 2a+1 , if a =9
2a+1
2(9)+1
18+1
19
5. 3m-4, m=5
3m-4
3(5)-4
15-4
11