Answer for brainliest

x=2  y=−1 so (2,-1)

Step-by-step explanation:

2x+y=3

x=3y+5

​Consider the second equation. Subtract 3y from both sides.

x−3y=5

To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the results for that variable in the other equation.

2x+y=3,x−3y=5

Choose one of the equations and solve it for x by isolating x on the left hand side of the equal sign.

2x+y=3

Subtract y from both sides of the equation.

2x=−y+3

Divide both sides by 2.

x=1/2(−y+3)

Multiply 1/2  times −y+3.

x=−1/2y+3/2

Substitute y+3/2  for x in the other equation, x−3y=5.

−1/2y+3/2−3y=5

Add −y/2 to −3y.

−7/2y+3/2=5

Subtract 3/2 from both sides of the equation.

−7/2y=7/2

Divide both sides of the equation by −7/2, which is the same as multiplying both sides by the reciprocal of the fraction.

y=−1

Substitute −1 for y in x=−1/2y+3/2. Because the resulting equation contains only one variable, you can solve for x directly.

x=−1/2(−1)+3/2

Multiply −1/2 times −1.

x=1+3/2

​Add 3/2 to 1/2  by finding a common denominator and adding numerators. Then reduce the fraction to the lowest terms if possible.

x=2

The system is now solved.

x=2,y=−1

Graph for reference:

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.