Question

Solve the following equations:
a) 3 + y =21
b) 45 x = 9
c) 2a + 5 = 15
d) m/4 = 4
e) 7 + b =12
f) X – 2 = – 3

Answer 1

Answer:

a) 3 + y = 21

y=21-3

∴y=18

b)45 x = 9

x=9/45

∴x=1/5

c)2a + 5 = 15

2a=15-5

2a=10

a=10/5

∴a=3

d)m/4=4

m=4x4

∴m=16

e)7+b=12

b=12-7

∴b=5

f)x-2=-3

x = -3 + 2

∴x= -1

Hope it helps you:)