Answer: 3
Step-by-step explanation: This equation can be written as 4x+3x-4=17
We can now solve.
Moving the 4 to the other side (adding) and we get 21.
Now we have 4x+3x. Adding like terms, we get 7x = 21. Now we divide by 7.
X = 3.
Answer:
add up all the sides!!
6+3+3+3+5+12+4+6=38
so the perimeter is 38 ft
<span>k+12/k=8
Multiply k to remove the k in one side
</span><span>(k+12/k=8) (k)
</span>Therefore,
k^2+12k-8k=0
Thus,
The equations he must solved now is k^2-8+12=0
Answer:
y=8
Step-by-step explanation:

let's note this as our equation no. (i)
and let 2x-3y = -30 be the equation no. (ii)
Put value of y from (i) into (ii)

Now put x = -3 back in equation (i)
