# Tutor profile: Mandy B.

Mandy B.

Tutor for 12 years; Educational Director and student counselor for 7 years

## Questions

### Subject: Linear Algebra

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Question:

Solve using substitution 3x+y= -3 x= -y+3

Mandy B.

Answer:

Insert the value of x into the first equation 3( -y+3) + y = -3 -3y+9+y=-3 -2y=-12 y=6 Insert the value of y into an original equation to find the value of x x= -3

### Subject: Basic Math

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Question:

Estimate the sum of 457+62 using front end estimation

Mandy B.

Answer:

500+60=560

### Subject: Algebra

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Question:

The sum of 3 times a number and 23

Mandy B.

Answer:

3(x+23)

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