Question

 1.Find the solution of 3x-4 = 12
2.  Solve: 5x-9 = 8
3.  What should be subtracted from thrice the rational number -8/3 to get 5/2?
4.  The sum of three consecutive multiples of 7 is 63. Find these multiples.
5.  Solve 3x/4 – 7/4 = 5x + 12
6.  Perimeter of a rectangle is 13cm. if its width is 11/4 cm, find its length.​

Answer 1

Step-by-step explanation:

1.3x-4=12

3x=16

x=16/3

2.5x-9=8

5x=17

x=17/5

6.2(l+b)=13

l+b=13/2

l+11/4=13/2

l=13/2-11/4

l=26-11/4

l=15/4

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