Question

ex 1 si ex 2 H.E.L.P MEE PLZZ

Answer 1

1)a
12-5×2=
12-10=2

b)

$\frac{9}{20} \times \frac{80}{1} = 36$

c)
7×5+4=39.

2)a
inversul lui 7=1/7

b)
2x+3=7
2x=7-3
2x=4
x=4:2
x=2

c)
9-|-7|=2
9-7=2
.............