A could be 2 while B could be 3, so -2a+3b turns into -4+9, which equals 5.
From what I know you can't really solve a a single equation with two-variables so it's just a matter of trial and error.
Just try plugging in a small number like 2 for a just to try it and you get 8b^2=72.
Divide everything by 8 to isolate b and you get that b^2=9.
Square root everything and you'll find that b=3. This is just one possible combination, I'm sure there are many more but this is obviously the one that was intended to be found.
Now that we know that a=2 and b=3 just plug them into the equation.
-2(2)+3(3)=?
-4+9=?
5
Sorry about having to use this ^ symbol, the equation maker is not working.
Answer:
X=-7
Step-by-step explanation:
When "subtracting" negatives it's basically like adding them together, but the numbers get farther away from 0 going left... The equation could look like
-7 - 2 = -9 <em>or </em>-7 + (-2) = -9 :)
Answer:
d = A or 49
Step-by-step explanation:
25^2 =625
24^2 = 576
625-576= 49 or 7^2
The answer is the second option, -4x-8=15x-40
When you distribute the first thing you do is kcf, which means keep change flip. Then you distribute.
I hope I’m correct if I’m not please let me know
Answer:
A
Step-by-step explanation:
HI
