Question

2. Solve the following by
cross multiplication​

Answer 1

Step-by-step explanation:

1) x/2 -1/4 = x/3 + 1/2

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

3x+2x/6 = 2+1/4

5x/6=3/4

Cross multiplying:

20x=18

x=18/20

x=9/10

2)x-4/7 - x+4/5 = x+3/7

5x-20-7x-28/35 = x+3/7

-(2x+48)/35=x+3/7

Cross multiplying:

-14x-336=35x+105

49x= -231

x=-231/49

3)5x+2/2x+3 = 12/7

Cross multiplying:

35x+14=24x+36

11x=22

x=2

4)x+7/3x+16 = 4/7

7x+49=12x+64

5x= -15

x=-3

6)x/2+x/3-x/6=8

3x+2x-x/6=8

4x/6=8

cross multiplying:

4x=48

x=12

7)2x/3 - x/5 = 11 2/3

10x-3x/15 = 35/3

7x/15=35/3

cross multiplying:

21x=35*15

x=35*15/21

x=25

9)x/2 -4/5+x/5 +3x/10 =1/5

x/2+x/5+3x/10=1/5+4/5

5x+2x+3x/10=1

10x/10=1

x=1

10)8p-5/7p+1 = -2/4

8p-5/7p+1 = -1/2

16p-10=-7p-1

23p=9

p=9/23

11)x+5/6 -x+1/9 =x+3/4

9x+45-6x-6/54=x+3/4

3x+39/54=x+3/4

x+13/18=x+3/4

cross multiplying:

4x+52=18x+54

14x=-2

x= -1/7

12)x/10 +x+1/17 + x+2/26 = 10

221x+130x+130+85x+170/2210=10

436x+300/2210=10

cross multiplying:

436x+300=22100

436x=21800

x=21800/436

x=5450/109

plz mark as brainliest....