Question

Expand the brackets using the distributive law: 7(2a + 1) *
1 point
7a + 1
7a + 7
14a + 1
14a + 7
What is the CORRECT FIRST STEP in solving the equation 40 – 10x = 35 ? *
1 point
– 10x = 35 + 40
10x = 35 – 40
– 10x = 35 – 40
10x = 35 + 40
Solve for x: 8x + 14 = 3x – 11 *
2 points
x = 3/5
x = –5
x = 5
None of the above
Expand and simplify –6(x – 1) + 9(4x – 3) *
2 points
30x + 33
30x – 33
30x – 21
30x + 26
Factor the expression 50x – 15, using the common factor. *
1 point
5(10x + 3)
5(10x – 3)
50(x + 15)
10(5x – 15)
"If the numerator of a fraction is an algebraic expression, then the denominator must be divided into each coefficient or constant in the numerator." What do we call this mathematical law? *
1 point
The distributive law of multiplication
The distributive law of division
The distributive law of exponents
Common factoring
Isolate (solve for) x, in the equation 5x + y = 100 *
2 points
x = 20 – y/5
x = 20 + y/5
x = 100 – y/5
x = 100 + y/5

Answer 1

Answer:

14a+7

Step-by-step explanation:

7(2a+1) = (7*2a+7*1) = 14a + 7