## Solving Linear Equation by Substitution Method Algebra Watch Video

Q.

4x + 3y = 1 and x = 1 – y

Solution:

In

**substitution method**, we have a given equation of two variables, x and y.

First you put the value of x in other given equation 4x = 2x + 3y and calculate the value of y.

Steps are:

x = 1 –y

Plug ‘x’ in first equation.

4(1 –y) + 3y = 1

Solve this equation for y

4 –4y + 3y = 1

4 –y = 1

y = 3

Substitute y = 1 in any one of the given equation and find the value of other variable

x = 1 –y

x = 1 –3 = –2

Answer is : x = –2, y = 3

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