Algebra Study Guide

Name the underlined part of this expression. 3w + 5t -15

• coefficient

• constant

• variable

• term

Name the underlined part of the expression. 21 + g - 5h

• term

• variable

• constant

• coefficient

Name the underlined part of the expression. 13r - 29

• constant

• term

• coefficient

• variable

If there is not a number in front of a variable, it is understood to be ....

• 1

• 0

• -1

• 5

Simplify the Expression:

3a + 7 - 2a

• 8a

• 12a

• a + 7

• 5a + 7

Which of the following is equivalent to 4(2x - 3)

• -4x

• 8x - 3

• 8x - 12

• -4

4(x + 2) + 6x

• 4x + 2 + 6x

• 4x + 8 + 6x

• 10x + 8

• 10x + 2

8 + 5(x - 2) 

• 5x - 6 

• 5x + 6

• 5x - 2 

• 5x + 2

There are 31 members on the bowling team. There are 3 more girls than twice the number of boys. Which of the following system of equations can be used to find the number of boys, b and the number of girls, g?

• 2b+3=31

  g+31=b

• 2b+3=g

  b+g=31

• 2b-3=g

  b+g=31

• 2g+3=b

  b+g=31

Solve the system of equations.
y = 4x + 1
3x + 2y = 13

• (1, 5)

• (5, 1)

• (0.25, 2)

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