Answer:
D. 
Step-by-step explanation:
First, move the variable (+ 2y) to the left-hand side and change its sign.

Then, move the constant (+ 7) to the right-hand side and change its sign.

Then, collect the like terms (y - 2y)

Finally, add the numbers (3 + 7). That will get you your final answer.

Slope=(y2-y1)/(x2-x1)
=(4-7)/(2--3)
=3/5
Answer:
There is no question to solve. Please repost the question.
Step-by-step explanation:
6 / 88 = 21/x
cross multiply
(6)(x) = (21)(88)
6x = 1848
x = 1848/6
x = 308 <==