Chapter 7 linear equaTionS 221Quiz
- Solve 5 xx −=^1243 +.
a. x=^1
6
b. x=−^7
2
C. x=^5
2
D. x=^7
2- Solve^1
23
5
xx+ = + 6.a. x=− 1
b. x=−^1
9
C. x= 3
D. There is no solution.3.^548
49 49
2
2()−
− ⋅()=a. − 20
b. − 49
C. − 56
D. 40- Solve 52 ()xx+−=− 83 () 42.
a. x=^11
10
b. x=^10
11
C. x=^18
11
D. x=^11
18- Solve^45 xx+= − 2 43 25.
a. x=− 50
b. x= 40
C. x=− 90
D. x= 60