Question

What is the value of x in the equation 4.5x – 2.9 = 1.2x

Answer 1

0.87

Explanation:

Answer 2

Given :

`{\qquad { \longrightarrow \sf 4.5x - 2.9 = 1.2x }}`

To Find :

• The value of x.

Solution :

`{\qquad { \longrightarrow \sf 4.5x - 2.9 = 1.2x }}`

Adding (2.9) to both sides we get :

`{\qquad { \longrightarrow \sf 4.5x - 2.9 + 2.9= 1.2x + 2.9 }}`

`{\qquad { \longrightarrow \sf 4.5x \: \: \cancel{ - \: 2.9} \: \: \cancel {+ \: 2.9}= 1.2x + 2.9 }}`

`{\qquad { \longrightarrow \sf 4.5x = 1.2x + 2.9 }}`

Subtracting (-1.2x) from both sides we get :

`{\qquad { \longrightarrow \sf 4.5x - 1.2x= 1.2x - 1.2x + 2.9 }}`

`{\qquad { \longrightarrow \sf 3.3x= \cancel{1.2x} \: \: \cancel{ - \: 1.2x} + 2.9 }}`

`{\qquad { \longrightarrow \sf 3.3x = 2.9 }}`

`{\qquad { \longrightarrow \bf x = (2.9)/(3.3) }}`