Solve this simultaneous equation
4x+3y=18
x-3y=7

x=5, y = -2/3

Step-by-step explanation:

4x+3y=18

x-3y=7

Add the two equations together

4x+3y=18

x-3y=7

5x = 25

Divide by 5

5x/5 = 25/5

x = 5

Now solve for y

x - 3y = 7

5 -3y = 7

Subtract 5 from each side

5-3y-5 = 7-5

-3y = 2

Divide by -3

-3y/-3 = 2/-3

y = -2/3

x = 5, y = -2/3

Step-by-step explanation:

4x+3y=18 make x the subject

4x = 18 - 3y

x = (18 - 3y )/4 equation 1

x-3y=7 make x the subject, follow the same method

x = 7 + 3y equation 2

then solve them ( equation1 and equation2 ) simultaneously:

7 + 3y = (18 - 3y )/4

( 7 + 3y ) * 4 = 18 - 3y

28 + 12y = 18 - 3y bring y in one side and numbers in another side

10 = - 15 y

y = - 2/3

if y = -2/3

then x = 7 + 3 ( -2/3 ) from equation 2

x = 7 - 2

x = 5

“ a line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. the diameter is twice the size of the radius. a line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. a circle is the same as 360 small circle up the number 0 . i hope this .

step-by-step explanation:

rectangles are made up of 4 right angles, which means that a side and a base meet perpendicular to one another.   their slopes then have to reflect perpendicular slopes.   perpendicular slopes are opposite reciprocals of one another.   for example, if the slope of one line is +2/3, then the perpendicular slope to that would be -3/2.   so we look for that combination in our choices.

all of them satisfy that condition (so what's the question, i guess? )