Page 636 - Basic College Mathematics with Early Integers
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CHAPTER 8 REVIEW 613
Solve.
83. c - 5 =-13 + 7 84. 7x + 5 - 6x =-20
85. -7x + 3x =-50 - 2 86. -x + 8x =-38 - 4
87. 14 - y =-3 88. 7 - z = 0
89. 9x + 12 - 8x =-6 + 1-42 90. -17x + 14 + 20x - 2x = 5 - 1-32
4 1 5 5
91. x =- 92. - x =
9 3 24 6
93. 2y + 6y = 24 - 8 94. 13x - 7x =-4 - 12
2 7
95. x - 12 =-4 96. x + 5 =-2
3 8
97. -5z + 3z - 7 = 8z - 7 98. 4x - 3 + 6x = 5x - 3
99. Three times a number added to twelve is 27. Find 100. Twice the sum of a number and four is ten. Find
the number. the number.
