Question

plz answer plz answer​

Answer 1

Answer:

1)180

Step-by-step explanation:

1) 2x/3 - x/2 = 30

4x-3x/6 = 30

x/6 = 30

x = 30× 6

x = 180

Answer 2

Step-by-step explanation:

Q no.3 -3 . 2x/3 - x/2 = 30.

= LCM of 3,2 is 6.

then,

4x - 3x/6 =30.

x/6 =30.

x =30×6

x= 180.

soo ,

value of x is 180.

Q no.3 - 4. 2x-3/2 + (2x+3x-1/4) = 1/8

2x-3/2 +(8x+3x-1/4) = 1/8

2x-3/2 + 11x-1/4 = 1/8.

4x-6+11x-1/4 = 1/8.

15x-7/4 = 1/8.

now do cross multiplication.

120x-56 = 4.

120x = 4+56

120x = 60.

x = 60/120.

x = 1/2.

so.,

the value of x is 1/2.

Q no.3 -5 . 7y+4/y+2 = -4/3.

do cross multiplication here,

21y+12 = -4y+(-8).

21y+4y = -8-12.

25y = -20.

y = -20/25

y= -4/5.

hence, .

value of y is -4/5.

Q no. 5- 6. 4(2x-3)/5 + (3x-4) = 16/5.

8x-12/5 + (3x+4) = 16/5

8x-12+15x-20/5 = 16/5.

23x-32/5 = 16/5 .

23x-32 = 16.

23 x = 16+32

23x = 48.

x = 48/23.

hence ,

value of x is 48/23.

Q no. 5 - 7. x-1/2x+3 = 1 .

x-1 = 2x+3

x-2x = 3+1

-x = 4

x = -4.

hence,,

value of x is -4.

Q no. 5 - 8. 17-3x/5 - 4x+2/3 = 5-6x + 7x+14/3.

51-9x-(20x+10)/15 = 15-18x+7x+14/3.

51-9x-20x-10/15 = 29-11x/3.

41-29x/15 = 29-11x/3.

41-29x = 5(29-11x).

41-29x = 145-55x.

-29x+55x = 145-41.

26x = 104 .

x = 104/26.

x = 4 .

hence ,,

value of x is 4.

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