the value of the variable that makes an equation true solution the value of the variable that makes an equation true x + 3 = x = 9 6
to find the value of the variable solve to find the value of the variable
Multiplication Equations
The product of n and 3 equals 15.
The product of n and 3 equals 15. 3(5) = 5 = 15
Solving Multiplication Equations
5n = 10 5 5 n = 2
13x = 546 13 13 x 13(42) = 42 = 546
Mrs. Johnson is 3 times as old as her daughter, Kathryn. If Mrs Mrs. Johnson is 3 times as old as her daughter, Kathryn. If Mrs. Johnson is 36 years old, how old is Kathryn? 3k = 36
3k = 36 3 3 k = 12
40 = 2.5x 2.5 2.5 16 = x x = 16
6a = 24 108 = 9x 0.7 ∙ h = 6.3 6 6 9 9 0.7 0.7 a = 4 12 = x h = 9 x = 12
Complete #1−44 (even) on Student Text pp. 222−23.