Question

12.1
tes of the variable. Decide whether
tion.
(2) 9m = 81,
m = 3,9, -3
(4) 3 - y = 4,
y = -1, 1, 2
(3) 3x + 12 = 2x - 4​

Answer 1

Answer:

9m=81

m=81/9

m=9

4) 3-y=4

y=4-3

y=1

3)3x+12=2x-4

3x-2x=-4-12

x. =-16