Question

$7 \times - 4 = 3 \times + 8$
what is the ratio of RS:120 and RS 330? express your answer in the simplest form​

Answer 1

Given: The equation is$7x-4=3x+8$.

We have to solve the above equation and find the ratio of RS:$120$ and RS$330$.

• By using the concept of equation shifting, we are solving the above equation.  
• For this, we will separate the variables on one side and the constant on another side.
• Then, we will simplify the equation.

We are solving in the following way:

We have,

a) $7x-4=3x+8$

$=>7x-3x=8+4\\=>4x=12\\\\=>x=\frac{12}{4}\\\\=>x=3$

Hence, the value of$x$ is$3$.

b) The ratio of RS:$120$ and RS$330$ will be:

$=>\frac{120}{330} \\\\=>\frac{4}{11}$

Hence, the ratio of RS:$120$ and RS$330$ is$\frac{4}{11}$RS.

Hence, we get

a) the value of$x$ is$3$.

b) the ratio of RS:$120$ and RS$330$ is$\frac{4}{11}$Rs.