Question

1. Solve the following equations. 2x-1/3=2-x​

Answer 1

Answer:

0.2x+0.3y=1.3.......(i)

0.4x+0.5y=2.3.........(ii)

From eqn (i)

0.2x+0.3y=1.3

 x=  

0.2

1.3−0.3y

​  

 

Substitute the value of x in eq (ii)

0.4×(  

0.2

1.3−0.3y

​  

)+0.5y=2.3

2×(1.3−0.3y)+0.5y=2.3

2.6−0.6y+0.5y=2.3

−0.1y=−0.3

y=3

Substitute the value of y in eq (i)

0.2x+0.3(3)=1.3

0.2x=1.3−0.9

0.2x=0.4

x=2

Step-by-step explanation:

Answer 2

Step-by-step explanation:

$\frac{2x - 1}{3} = 2 - x \\ \\ 2x - 1 = 3(2 - x) \\ \\ = 2 x - 1 = 6 - 3x \\ \\ = 2x + 3x = 6 + 1 \\ \\ = 5x = 7 \\ \\ = x = \frac{7}{5}$