Which expression is equivalent to 2/3x + 1?
A 1/3 (2x + 3)
B 2/3 (2x + 3)
C 2/3 (3x + 2)
D 2/3 (3x + 1)
B 2/3 (2x + 3)
Which expression is equivalent to 2(2x + 7)?
A 4x - 14
B 4x + 14
C 14x + 4
D 8x + 14
The correct answer is D. To simplify the expression 2(2x + 7), you can distribute the 2 to both terms inside the parentheses:
2 * 2x + 2 * 7 = 4x + 14
Therefore, the expression is equivalent to 4x + 14.
Which expression is equivalent to
-1/5 (10x + 15) - 2?
A -2x – 1
B -2x – 4
C -2x – 3
D -2x – 5
To simplify the expression -1/5 (10x + 15) - 2, you can distribute the -1/5 to both terms inside the parentheses:
-1/5 * 10x + -1/5 * 15 = -2x - 3
Then, you subtract 2 from the result:
-2x - 3 - 2 = -2x - 5
Therefore, the expression is equivalent to -2x - 5.
The correct answer is D.
Which expression in equivalent to 2/3 (4x - 9)?
To expand the expression 2/3 (4x - 9), you can distribute the 2/3 to both terms inside the parentheses:
2/3 * 4x - 2/3 * 9 = 8/3x - 18/3
Simplifying further, you can simplify the fractions:
(8/3)x - 6
Therefore, the expression is equivalent to (8/3)x - 6.
The correct answer is not provided.
Which expression is equivalent to -4(y – 7)?
A -4y - 28
B -4y - 7y
C -4y - 11
D -4y + 28
To expand the expression -4(y - 7), you can distribute the -4 to both terms inside the parentheses:
-4 * y - 4 * (-7) = -4y + 28
Therefore, the expression is equivalent to -4y + 28.
The correct answer is D.