Question

solve solve by using substitution method ​

Answer 1

Answer:

stitution Method

Substitution method can be applied in four steps.

Solve one of the equations for either x = or y = .

Substitute the solution from step 1 into the other equation.

Solve this new equation.

Solve for the second variable. ...

Step 1: Solve one of the equations for either x = or y = .

Step-by-step explanation:

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Answer 2

Answer:

Substitution method can be applied in four steps

•Step 1:

Solve one of the equations for either x = or y = .

•Step 2:

Substitute the solution from step 1 into the other equation.

•Step 3:

Solve this new equation.

•Step 4:

Solve for the second variable.

Step-by-step explanation:

Example 1: Solve the following system by substitution

2x+3yx+y=5=5

Solution:

•Step 1: Solve one of the equations for either x = or y = . We will solve second equation for y.

x + y = 5

y = 5 − x

•Step 2: Substitute the solution from step 1 into the second equation.

2x + 3y = 5

2x + 3(5-x) = 5

•Step 3: Solve this new equation.

2x + 3(5-x) = 5

2x +15 - 3x = 5

-x+15 = 5

-x = 5 - 15

x = 10

•Step 4: Solve for the second variable

y = 5 - x

y = 5 - 10

y = - 5

The solution is: (x, y) = (10, -5)

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