X=3y+4 3x-5y=8 solve using substitution

x = 3y + 4

3x - 5y = 8

Because we have a value for x, we can plug it into the second equation to solve for y.

3(3y + 4) - 5y = 8

9y + 12 - 5y =8

Combine like terms.

4y + 12 = 8

Subtract 12 from both sides.

4y = -4

Divide both sides by 4.

y = -1

Because we have a constant value for y, we can solve for x.

x = 3(-1) + 4

x = -3 + 4

x = 1

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

a

step-by-step explanation:

strong negative correlation