Question

1. Solve and check, whether your answer is correct or
not
(2) 3x - 9 = 12 (6) 8x = 18 – x.
(c) 5x-7 = 2x+ 8 (d) 3(x - 1) = 8

Answer 1

Step-by-step explanation:

2)x=12+9/3

x=7

check:3(7)-9=12

21-9=12

12=12

6)8x+x=18

x=18/9

x=2

check:8(2)=18-2

16=16

c)5x-2x=8+7

3x=15

x=15/3

x=5

check:5(5)-7=2(5)+8

25-7=10+8

18=18

d)3x-3=8

3x=8+3

x=11/3

x=3.66....

check:3(3.66...-1)=8

3(2.66...)=8

7.98...=8(approx.)

mark brainliest mate

Answer 2

hi mate ur ans....

a)3x-9=12

3x=12-9

x=3/3

x=1

b)8x=18-x

18=8x-x

18=7x

x=18/7=2.571....

c)5x-7=2x+8

5x-2x=8+7

3x=15

x=15/3=5

d)3(x-1)=8

(3*x-3*1)=8

3x-3=8

3x=8+3

x=11/3=3.6....

hope it help u mark me as brainlist plss...