How do you solve by substitution method?

How do you find the value of x using substitution?

Here’s how it goes:
  1. Step 1: Solve one of the equations for one of the variables. Let’s solve the first equation for y: …
  2. Step 2: Substitute that equation into the other equation, and solve for x. …
  3. Step 3: Substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

How do you find the value of X and Y?

We can conclude that if some bit in X is equal to 1 then the respective bit in Y is also equal to 1. Thus, Y = X + B. Taking into account that X + Y = X + X + B = A, one can obtain the following formulas for finding X and Y: X = (A – B) / 2.

What is substitution method with example?

The first step in the substitution method is to find the value of any one of the variables from one equation in terms of the other variable. For example, if there are two equations x+y=7 and x-y=8, then from the first equation we can find that x=7-y. This is the first step of applying the substitution method.

How do you find y in substitution?

Simplify and solve the equation for x. To find y, substitute this value for x back into one of the original equations. Check the solution x = −2, y = 0 by substituting them into each of the original equations.

How do you find the value of x?

Generally, the algebraic expression should be any one of the forms such as addition, subtraction, multiplication and division. To find the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result.

How do you find the value of y?

Finding the y value is easy if you know the slope of the line and the x coordinate. Review the equation for the slope of a line. The equation for finding the slope is: m = [y1 – y2] / [x1 – x2]. If you know x, you can solve for y to find the y value for the slope of the line.