Question

1
a) X+5=8
b) x-4=3
c)7-x=-7
d)x+9=-1
e)x+28=11
f) x-109=5

2
a)3×=15
b)2×=14
c)4×=-12
d)7×=-21

3
a)6×=2×+16
b)2×-5=×+1
c)2×+3=×+4
d)5×+7=4×+10
e)4×-7=8×-2
f)9×+9+3×=15

Answer 1

Resposta:

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