the last one sorry i thought 5 was negative lol
Answer:
5 · 5
Step-by-step explanation:
2 + 2 + 2 + 2 + 2 = 10
5 + 5 = 10
2 · 2 · 2 · 2 · 2 = 32
5 · 5 = 25
5
x × 4 = x + 15
4x = x + 15
-x -x
3x= 15
-- --
3 3
x = 5
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4*