Exploring Adding and Subtracting Rational Expressions

What is the result of distributing 7 to the expression 7(x + 4)?

• 7x + 28

• x + 11

• 7x + 4

• 49x + 28

When distributing -4 to the expression -4(y + 3), what is the correct simplification?

• -4y + 12

• -4y - 3

• 4y - 12

• -4y - 12

How do you simplify the expression -1(y - 9)?

• y - 9

• y + 9

• -y - 9

• -y + 9

What is the result of distributing x to the terms 2y, -5z, and 1?

• 2xy + 5xz + x

• 2yx - 5zx + x

• 2xy - 5xz + x

• x2y - x5z + 1x

How do you simplify the fraction 1/2 * 1/5x + 18?

• 1/10x + 3

• 1/7x + 18

• 5/10x + 9

• 1/10x + 9

What is the simplified form of 15/2x - 1/2x?

• 8x

• 7.5x

• 7x

• 14x

What does the expression 8(2x - 3) - 6x simplify to?

• 16x - 18

• 10x - 18

• 10x - 24

• 16x - 24

What is the result of distributing -1 to the expression y - x?

• y + x

• y - x

• -y + x

• -y - x

How do you simplify the expression 9/4 * -4?

• -36

• 9

• 36

• -9

What is the simplified form of the expression 1/4 * 8?

• 0.5

• 8

• 32

• 2