Review Exercises (Chapter 3—Answers)

1. x + 5 = 13  x = 8
2. z  6 = 3  z = 9
3. 3y+15y7=7y+8+y122y6=8y410y=2y=15image
4. 5z=11z=115image
5. 4y2=3y=32image
6. z3=11z=33image
7. 7z3=2z=57image
8. 5t3=9t=12
9. 4t71=8t3+521(4t7)=21(8t3+6)12t=56t+12644t=126t=

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