Question

A.×+3=7
b.×-2=-12

a.5×-1=-16
b.7×-5=5×+9

Answer 1

a.×+3=7
  x = 7 - 3
  x = 4
b.×-2=-12
   x = -12 + 2
   x = -10

a.5×-1=-16
   5x = -16 + 1
   5x = -15
   x = -15/5
   x = -3
b.7×-5=5×+9
   7x - 5x = 9 + 5
   2x = 14
   x = 14/2
   x = 7

Answer 2

A.4
b.-10
a.-3
hanya itu yang saya tahu