Question

pls someone answer this...​

Answer 1

Answer:

1. -13

2. 3

3. 1

4. -1

5.

$\frac{5}{2}$

Step-by-step explanation:

1. 2(3x+6)=3(x-9)

6x+12=3x-27

6x-3x= -27-12

3x= -39

x= -13

2.

$\frac{5}{2} x + 3 = \frac{21}{2}$

$\frac{5}{2} x = \frac{21}{2} - 3$

$\frac{5}{2} x = \frac{21 - 6}{2}$

$\frac{5}{2} x = \frac{15}{2}$

$5x = \frac{15}{2} \times 2$

5x=15

x=3

3.

$\frac{2x + 1}{3x - 1} = \frac{3}{2}$

2×(2x+1)=3(3x-1)

4x+2=9x-3

2+3=9x-4x

5=5x

x=1

4.

$\frac{6a + 3}{a - 2} = 1$

6a+3=a-2

6a-a= -2-3

5a=-5

a= -1

5.

$m - \frac{m - 2}{3} = 1$

3m-m-2=3

2m=3+2

2m=5

$m = \frac{5}{2}$

Answer 2

Answers:-

(1) 2(3x+6)=3(x-9)

or,6x+12 = 3x-27

or,6x-3x = -27-12

or,3x = -39

or,x = -39/3

or,x = -13 (ans.)

(2) 5x/2+3 = 21/2

or,5x/2 = 21/2-3

or,5x/2 = 21-6/2

or,5x/2 = 15/2

or,x = 15/2*2/5

or,x = 3 (ans.)

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

or,(3x-1)3 = (2x+1)2

or,9x-3 = 4x+2

or,9x-4x = 2+3

or,5x = 5

or,x = 5/5

or,x = 1 (ans.)

(4)