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Solve equations, systems and constrained models: retrieval

Solve equations, systems and constrained models: retrieval: a separate sample with explanations after your response.

Paper packet. Every task here also exists on screen, where it is checked automatically; answers written on paper are not assessed by Nydus. When you are back at a device, enter your answers there.

1. What you will learn

Solve equations, systems and constrained models: retrieval: attempt the equations inequalities sample without worked examples. Use the target of each question to decide which information matters, and record your initial response before reading its explanation.

2. Practice

If 3(2x-5)-4(x+1)=9, what is x?

• 14
• 28
• 7
• 15
• 13

3. Practice

The equations 2x+3y=19 and x-y=2 hold. What is y?

• 3
• 6
• 3/2
• 4
• 2

4. Practice

How many integer values satisfy -7 less than 2x+1 less than or equal to 9?

• 8
• 16
• 4
• 9
• 7

5. Practice

If |2x-3|=9, what is the sum of the two solutions?

• 3
• 6
• 3/2
• 4
• 2

6. What you can do now

Review the equations inequalities decisions in this algebra sample. Identify the particular restriction or evidence that changed your answer, and return to the corresponding worked lesson before trying a new case.