1.
how many solutions does the equation 5x + 10 = 5x –8 have? (4 points)
zero
one
two
infinitely many
2.
what is the value of y in the equation 2(4y –1) = 6? (4 points)
0
1
6
8
3.
the steps below show the incomplete solution to find the value of x for the equation
6x + 10 –4x = –4 –11:
step 1: 6x + 10 –4x = –4 –11
step 2: 6x + 10 –4x = –15
step 3: 2x + 10 = –15
which of these is most likely the next step? (4 points)
2x = 5
2x = –25
2x = 25
2x = 150
4.
what is the value of x in the equation 2(2x –5 –4) = 160 –17? (4 points)
40.25
62.25
80.25
143.0
5.
what is the solution to the following equation?
2(3x –7) + 18 = 10 (4 points)
1
3
5
6