Question

2 + y x2-2:2 + (2 + 2) : 2 = 7
3+3xA-3:3+(3+3):3=13
URGENT IN CLASA A TREIA

Answer 1

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2+yx2-2:2+(2+2):2=7

2+y×2-1+4:2=7

2+y×2-1+2=7

2+y×2-1=7-2

2+y×2-1=5

2+y×2=5+1

2+y×2=6

y×2=6-2

y×2=4

y=4:2

y=2

3+3xa-3:3+(3+3):3=13

3+3×a-1+6:3=13

3+3×a-1+2=13

3+3×a-1=13-2

3+3×a-1=11

3+3×a=11+1

3+3×a=12

3×a=12-3

3×a=9

a=9:3

a=3