English Language Arts
Grade 9
45 min
Correct errors with signs
Tutorial Preview
1
A student simplified -3(x - 5) to -3x - 15. Find the error.
2
A student simplified (7x + 2) - (4x - 1) to 3x + 1. Find the error.
3
A student solved -5x = 20 and got x = 4. Find the error.
Sample Practice Questions
Easy
A student simplified -2(y + 4) to -2y + 8. What is the correct expression?
0.-2y - 8
1.-2y + 8
2.2y - 8
3.2y + 8
Easy
A student simplified (5a + 3) - (2a + 1) to 3a + 4. What is the correct expression?
0.3a + 2
1.3a + 4
2.7a + 2
3.7a + 4
Easy
A student solved -3z = -12 and got z = -4. What is the correct value of z?
0.z = 4
1.z = -4
2.z = 9
3.z = -9
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