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Determine if the values given for the variables are solutions to the following equations.
1. x = 4 and y = 8 for y = 3x - 4
2.m = 12 and n = 200 for n = 15m - 20
3.a = 5 and b = 48 for b = 8a + 8
4.g = 40 and h = 1000 for h = 25g + 300

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27AwesomeJustice

Answer:

1. If x = 4 and y = 8, u = 3x - 4 would make sense because 3x, or 3 x 4 = 12

12 - 4 = 8 y = 8 (True)

2. m = 12 and n = 200 . n = 15m - 20 15 x 12 = 180 180 - 20 = 200 Would not make sense because 180 - 20 is 160 (False)

3. a = 5 and b = 48    b = 48 . 8a + 8 = 8 x 5 + 8 8 x 5 + 8= 48

(True)

4. G = 40 and h = 1000

H = 25g + 300

25g = 1000

1000+300= 1300, not 1000

(false)