A recent institution question and answer asked over students to indicate what they agree to is the main important factor for a student to do in order to gain success. The one that response stood out from the rest was practice. People who are certainly successful do not become successful by being born. They work hard and dedicate their lives to succeeding. If you would like to reach your goals, keep this in mind! shown below are one of the answer and question example that you can make use of to practice and supercharge your knowledge and also give you insights that may help you to preserve your study in school.

## Question:

James used substitution to solve this system of equations. Which could be the result of his first step

2x+3y=12

y=x+1.5

A.y=2x+3y

B.y=2x+3y+1.5

C.2x+3x+1.5=12

D.2x+3(x+1.5)=12

## Answer:

Using **Substitution **to solve this system of equation, the result of his first step will be **2x + 3(x + 1.5) = 12**

### Substitution

**Substitution** simply means to put in place of another. **Substitution **method is use to solve **systems of equation **by replacing one **variable** with another.

Therefore,

2x + 3y = 12

y = x + 1.5

using substitution,

**y = x + 1.5**

Therefore, let put the value of y in equation(ii)

**2x + 3(x + 1.5) = 12**

- 2x + 3x + 4.5 = 12

Therefore, the result of his first step is **2x + 3(x + 1.5) = 12**

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