Math Help - Substitution and Simplification

1. Substitution and Simplification

expression

Thank You. This is what I got

M=-2 P=4

3P-M
3MP

3*4-2
3*-2*4

= 10
-24

= -5
12

the answer is suppsed to be -7/12 ???

anyone?

2. Re: Substitution and Simplification

Can you show the work you've done in plugging the numbers in? Incidentally, math is case-sensitive. m is not equal to M.

3. Re: Substitution and Simplification

done

Originally Posted by Ackbeet
Can you show the work you've done in plugging the numbers in? Incidentally, math is case-sensitive. m is not equal to M.

4. Re: Substitution and Simplification

OK, that's a good correction. But you still haven't posted your work yet.

5. Re: Substitution and Simplification

expression

Thank You. This is what I got

M=-2 P=4

3P-M
3MP

3*4-2
3*-2*4

= 10
-24

= -5
12

the answer is suppsed to be -7/12 ???

6. Re: Substitution and Simplification

Originally Posted by whereitsbeen
expression

Thank You. This is what I got

M=-2 P=4

3P-M
3MP

3*4-2 ... here ... should be 3*4 - (-2)
3*-2*4

= 14
-24

= -7
12

...