A few days ago
Simplify algebraic expressions??????HELP!!!!!!!!!!!?
I do not get this at all I need serious help if not im going to fail miserably every paper.
Could i get an answer for -2x+2y where x=4 y=5 to see if im doing it right
im in 8th grade
Top 6 Answers
A few days ago
Favorite Answer
-2(4)+2(5)
-8+10(when you add a neg to a pos., you actually subtract the smaller number from the greater one and give the sign of the greater one.)
+2
0
A few days ago
(-2 x 4) + (2 x 5)
-8 + 10 = 2
When you are multiplying, then a negative and a positive equals a negative, but when you are adding or subtracting, it is different. Say you reversed them:
10 – 8 = it would equal 2, not negative two.
0
A few days ago
=2
-2(4)+2(5)
(-8)+(10) or 10-8
=2
0
A few days ago
Just plug 4 into the x
-2(4)
and plug the 5 into y
2(5)
and add… -2(4)+2(5) = well, its your homework!
0
A few days ago
wow… they’re GIVING you what X and Y equal, hon. Just plug those numbers into the equation and do the basic math. If you have difficulty with basic multiplication, addition, and order of operations, you may need to speak with your guidance counselor about being placed in a different math class until you’re truly ready for Algebra. Seriously — there is no valor and no benefit in taking a class before you are comfortable with the prerequisite knowledge/skill.
0
A few days ago
it equals 2
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