Question

solve each equation for m, then find the value of m for each value of n, show your work
m + 3n = 7; n = -2, 0, 1

Answer 1

This one is fairly simple. Just do 3xn, -2,0,1- and add whatever is left to get to 7 and that will equal m. Write out 3 separate equations.

Answer 2

can you show me? the seperate equations.

Answer 3

3x-2= -6. -6+8=7, m=7.
3x0=0. 0+7=7 m=7
3x1=3. 3+4=7 m=4

Answer 4

Correction, the first one is m=8, sorry.

Answer 5

thanks

Answer 6

Best response? :D

Answer 7

best response

Answer 8

wait.... how did you get 8 ?
-6 + 8?

Answer 9

whatever is to the right, after the multiplication, how did you get it?

Answer 10

Oops! Alright, that one was wrong, sorry. It's 13.

Answer 11

You are just trying to solve for m in a sense, because n is already given to you 3 times. Just combine the numbers for n, make the equation, and use mental math for the rest. Apparently I wasn't using any, but I made the correction, haha. Hopefully that helped.

Answer 12

beginning to end man, im even confusing my teacher with this xD

Answer 13

yeah, thats cool, thanks :P

Answer 14

Okay so you have, m+3n=7. You would put in one of the numbers it gives you on the right for the equations, so take 0. 3x0=0. So, with that knowledge, you now only have to solve for m, m must equal 7 then. Haha

Answer 15

The answer is -3.