Answer:
MB = 21
Step-by-step explanation:
If M is the midpoint of AB, then AM = MB
AM + MB = AB
AM + AM = AB
Replace with AM = 3x+3 and AB = 8x-6
3x+3 + 3x+3 = 8x-6
Combine like terms
6x +6 = 8x-6
Subtract 6x from each side
6x-6x +6 = 8x-6x-6
6 = 2x-6
Add 6 to each side
6+6 = 2x-6+6
12 = 2x
Divide by 2
12/2 = 2x/2
6 =x
Now we want to find MB = AM
MB = AM
MB = 3x+3
= 3(6) +3
= 18+3
=21
Answer:
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
To continue where you left off, ...
The square root of 324 is 18.
Answer:
100.66 is the decimal.
Step-by-step explanation:
100⅔ = 302/3
302 ÷ 3 = 100.66 to infinity.
Equation 1) 2x - 3y = -1
Equation 2) y = x - 1
We want both equations to be in standard form (Ax+By=C) so we need to fix the second equation.
For the second equation, simply subtract x from both sides, so that x & y are on the same side of the equal sign :)
2) -x + y = -1
1) 2x - 3y = -1
Now, we have to multiply ALL of equation 2 by 2 so that both equations 1 & 2 have "2x" in them :)
2) 2(-x + y = -1)
Simplify.
2) -2x + 2y = -2
1) 2x - 3y = -1
Now, add these equations together.
-y = -3
Divide both sides by -1.
y = 3
Now, plug in 3 for y in the first equation.
1) 2x - 3y = -1
2x - 3(3) = -1
Simplify.
2x - 9 = -1
Then, add 9 to both sides.
2x = -1 + 9
Simplify.
2x = 8
Divide both sides by 2.
x = 4
So, x = 4 & y = 3
~Hope I helped!~