1. 7a x 8 =168
2. 7+ 2a =23
3. 6c + 8c =28
2 answers:
Answer:
1. a = 3
2. a = 8
3. c = 2
Step-by-step explanation:
7a x 8 = 168
- 56a = 168 <-- 7a x 8 =56
- (56a)/56 = 168/56 <-- divide both sides by 56
- a = 3
7 + 2a = 23
- (7 + 2a) - 7 = 23 - 7 <-- subtract 7 from both sides
- 2a = 16
- (2a) / 2 = 16/2 <-- divide both sides by 2
- a = 2
6c + 8c = 28
- 14c = 28 <-- 6c + 8c = 14c
- c = 2 <-- divide both sides by 14
Answer:
first is 3, then 8, then it's 2
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Step-by-step explanation:
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