Question

give the geometric representation of 3x + 1 = x-4 as an equation in (a) one variable (b) two variable

Answer 1

(Take the cost of a notebook to be Rs. x and that of a pen to be Rs. y).

Sol: Let the cost of a notebook = Rs x

The cost of a pen = y

According to the condition, we have

[Cost of a notebook] = 2 × [Cost of a pen]

i.e. [x] = 2 × [Y]

or x = 2y

or x – 2y = 0

Thus, the required linear equation is ×–2y=0

HOPE IT HELPS UH

Answer 2

Answer:

(a)- 3x+1 = x-4

3x-x = -4+1

2x = -3

x = (-3)/2.