Step-by-step explanation:
4(5x-9)=-2(x+7)
4*5x-4*9=-2*x-2*7
20x-36=-2x-14
20x+2x=-14+36
22x=22
x=22/22
x=1
They both equal y so they both equal each other
Step-by-step explanation:
x/4+3y^2
=8÷4 + 3×3^2
=2+9^2
=2+81
=83
Answer:
187 layers after 37 hours.
Step-by-step explanation:
since there is 5 very hour and you already have 2 brick layers high your gonna take 5•37+2=187
Given:
kth term of a sequence is

To find:
The next term
when k is even.
Solution:
We have,

Put k=k+1, to get the next term.

If k is even, then k+1 must be odd and odd power of -1 gives -1.


![[\because (a-b)(a+b)=a^2-b^2]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%28a-b%29%28a%2Bb%29%3Da%5E2-b%5E2%5D)

Therefore, the next term is
.