Which expression is NOT equal to 28? A. (9 + 25 ÷ 5) × 2 B. [(13 – 4 × 2) – 1] × 7 C. 42 ÷ 6 + 28 ÷ 4 D. 7 × [8 – (12 – 4 × 2)]
1 answer:
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Answer:
$42.80
Step-by-step explanation:
We can set up an equation to solve this as such
Answer:
8
Step-by-step explanation:
let the number be n , then
n + 3 = n - 3 ( multiply through by 4 to clear the fraction )
n + 12 = 4n - 12 ( subtract 4n from both sides )
- 3n + 12 = - 12 ( subtract 12 from both sides )
- 3n = - 24 ( divide both sides by - 3 )
n = 8
That is the number is 8