Linear Equations

Solve     9 + 3x = 10

• 2/3

• 1/3

• -1/3

• 4

What is the first step (after setting up your workspace) in solving this equation:
5x + 7 = 12

• Divide by 5

• Subtract 5

• Multiply by 7

• Subtract 7

• A
• B
• C
• D

• A
• B
• C
• D

The solution of equation x-2y = 4 is:

• (0,2)

• (2,0)

• (4,0)

• (1,1

?

Mathematical Equivalence

OFF

-16x=2y-10

• 8x+y=5

• -16x-2y=10

• 16x+2y=-10

• 8x-y=-5

What is the y-intercept of

2x - 5y = 35?

• (0,-7)

• (-7,0)

• (35/2, 0)

• (0,35/2)

What is the first step to solve
–5x – 8.4 = 17?

• divide by –5 on both sides

• subtract 8.4 from both sides

• subtract 17 from both sides

• add 8.4 to both sides

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