solve two-step equation p(x+r) = k

3(x+ 6) = 18

• x= 6

• x= 0

• x=4

• x=-6

7(p – 3) = 35

• p=8

• p=5

• p=-5

• p=-8

-12(3 - x) = - 60

• x=3

• x=2

• x=-3

• x=-2

−0.25(8 + x) = 14

• x=64

• x= -64

• x= 65

• x= -65

4/5 (x + 7)= 20

• x= 15

• x=15

• x= 18

• x= 10

A student is solving

−2(x - 5) = 12. Find the student’s mistake and correct it.

−2(x − 5) =12

−2x − 5=12

−2x − 5 + 5 = 12 + 5

−2x = 17

x = −8.5

• The student only distributed the −2 to the second term inside the parentheses . The correct solution is x = 5

• The student only distributed the −2 to the first term inside the parentheses instead of both terms. The correct solution is x = −1

• The student added 5 in both sides . he must do it in one side only . The correct solution is x = 7

The reading rug in Mrs. Shaw's room has a perimeter of 28 meters. The table gives the length and width of the rug. If the equation 4(x + 3.3) = 28 can be used to find the perimeter of the rug, what is the value of x?

• 3

• 3.15

• 3.7

• 7.3

4(x + 8) = 44

• x= 1

• x=2

• x=3

• x=4