Sagot :
Answer:
1. N = 21
2. the value of N is 29
3. N = 50
4. N = 19
Step-by-step explanation:
Use PEMDAS
1. ( 12 - 3 ) + 18 ÷ 3 x 2 = N
9 + 18 ÷ 3 x 2
9 + 6 x 2
9 + 12
N = 21
2. 5 + 24 ÷ 2 x ( 10 - 8 ) = N
5 + 24 ÷ 2 x 2
5 + 12 x 2
5 + 24
N = 29
3. ( 4 x 5 ) + ( 3 x 10 ) = N
20 + 30
N = 50
4. ( 40 ÷ 5 ) x 3 - 10 + 5
8 x 3 - 10 + 5
24 - 10 + 5
14 + 5
N = 19
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