(4+8x)-(-2+7x) = 4+2+8x-7x
(6+x) ;^;
Answer:
{x | x R, x ≤ -4}
Step-by-step explanation:
Given choices are:
{x | x R, x < -4} {x | x R, x ≤ -4} {x | x R, x > -4} {x | x R, x ≥ -4}
Now we need to find about Which of the following sets would have a graph that is a closed circle on -4 and an arrow to the left?
we know that close circle is used only if we have ≤ or ≥ in given inequality.
Since arrow goes to the left then it must be ≤
Hence final answer is {x | x R, x ≤ -4}
[1] -5y + 8x = -18
[2] 5y + 2x = 58
<span>For this question you are looking for the value of K. The question is asking what number multiplied with 8 and added with 12 equals 48. So the equation is:
12+8(K)=48
To solve the problem you need to balance the equation by doing the opposite of the equation to the answer until only K remains.
We start with the 12. The equation wants us to add 12 so we subtract it from both sides instead and get the new equation:
12+8(K)=48-12 : 8(K)=36
Now we need to get rid of the 8. The equation wants us to multiply by 8 so we divide it from both sides instead and get the new equation:
K=36/8 : K=4.5
So the answer is K=4.5. Now just to make sure we test the equation with the answer.
12+(8x4.5)=48
12+36=48
48=48
Since the two match we have confirmed that K does indeed equal 4.5.</span>