1. Solve 15 + y = 24
y = 24 – 15 = 9
2. Evaluate (-2)2
(-2)2 =
(-2)(-2) = 4
3. Solve 3x – 5 = 13
3x = 13 + 5 = 18
x = 6
4. Zero divided by any number is
0
5. Is 5 a solution of 2b + 3 = 15 ?
2(5) + 3 = 10 + 3 =
13 ¹ 15
So 5 is not a solution
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