Question

a)x + 5 = 8
b)x - 4= 3
c)7 = x + 8
d)3x = 15
e) 2x - 2 = 12 - 5x
f)3x – 13 = 8
g)7x - 33 = -12
h)35x =-105
i) 9x - 2 = 4x + 18
j) 5x – 91 = 4x - 77
k) 7x + 1 = 5x – 7
1) 2(x + 5) -4 = 26
m) 3(x+ )= 2 ( x - 7)
n) 3(x + 2)-1 = 2(x + 3) - 7
o) 3(x + 1) + 2 = 5 + 2(x - 1)
p) 3(3x +8) -5x = x - 3
9) 5 (2x - 1) = 3 (x + 10)
r) 2(x - 3) + 8x +4 = 5 (x+2)
s) 3(2x - 3) + x = 5
t) 3x + 5 + 2x + 6 = x + 27
u) 2 (x-1) + 3(x + 1) = 4(x + 2)

Answer 1

A)a)x + 5 = 8

x=8-5

x=3

b)x - 4= 3

x=3+4

x=7

c)7 = x + 8

-x=8-7

-x=1 (-1)

x=1

d)3x = 15

x=15÷3

x=5

e) 2x - 2 = 12 - 5x

2x+5x=12+2

7x=14

x=14÷7

x=2

f)3x – 13 = 8

3x=8+13

3x=21

x=21÷3

x=7

g)7x - 33 = -12

7x= -12+33

7x=21

x=3

h)35x =-105

x= -105÷35

x= -3

i) 9x - 2 = 4x + 18

9x-4x=18+2

5x=20

x=20÷5

x=4

j) 5x – 91 = 4x - 77

5x-4x= -77+91

x=14

k) 7x + 1 = 5x – 7

7x-5x= -7-1

2x= -8

x= -8÷2

x= -4

l) 2(x + 5) -4 = 26

2x+10-4=26

2x=26-10+4

2x=20

x=20÷2

x=10

m) 3(x+ )= 2 ( x - 7)

3x+1=2x-14

3x-2x= -14-1

x= -15

n) 3(x + 2)-1 = 2(x + 3) - 7

3x+6-1=2x+6-7

3x-2x=6-7-6+1

x= -6

o) 3(x + 1) + 2 = 5 + 2(x - 1)

3x+3+2=5+2x-2

3x-2x=5-2-3-2

x= -2

p) 3(3x +8) -5x = x - 3

9x+24-5x=x-3

9x-5x-x= -3-24

3x= -27

x= -27÷3

x= -9

q) 5 (2x - 1) = 3 (x + 10)

10x-5=3x+30

10x-3x=30+5

7x=35

x=35÷7

x=5

r) 2(x - 3) + 8x +4 = 5 (x+2)

2x+6+8x+4=5x+10

2x+8x-5x=10-6-4

5x=0

x=0/5

s) 3(2x - 3) + x = 5

6x-9+x=5

6x+x=5+9

7x=14

x=14÷7

x=2

t) 3x + 5 + 2x + 6 = x + 27

3x+2x-x=27-5-6

4x=16

x=16÷4

x=4

u) 2 (x-1) + 3(x + 1) = 4(x + 2)

2x-1+3x+3=4x+8

2x+3x-4x=8+1-3

x=6