How do you do 43? I'm really confused.

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

8 0

Remove parenthesis on m-2 because you don't need to distribute ( you have an invisible 1, but it won't change the values bc it's a one) Combine your like terms on the side you removed the parenthesis. m-2-5 -> m-7. Now on the other side distribute the 2 to the terms in the parenthesis. once you've done that your equation should look like this 8- 2m +8. now lets look at th full equation. m-7=8-2m+8 move the -2m to the other side, by adding. you now have an equation like this 3m- 7=16. move the -7 to the other side by adding. 3m=23. divide 23 by 3. you're answer should be m= 23/3
its best to leave your answer as a fraction.
Hope this helped. (:

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Tavon has a gift card for $135 that loses $3 for each 30-day period it is not used. He has another gift card for $115 that loses

MrMuchimi

Answer:

Step-by-step explanation:

let x be the number of 30 day periods

135 - 3x = 115 - 2.50x

135 - 115 = -2.50x + 3x

20 = 0.50x

20 / 0.50 = x

40 = x

135 - 3(40) = 135 - 120 = 15