7x + 4y = 24
4x - 4y = 0
first thing we need to do is eliminate a variable by adding them together. 4y - 4y eliminates the y.
7x + 4y - 4y = 24
4x - 4y + 4y = 0
7x = 24
4x = 0
no we can add our x’s together since they are the same variable.
11x = 24
now we need to divide both sides by 11.
11x = 24
— —
11 11
x = 24
—
11
this is x. now we need to substitute x into our first equations.
4(24/11)-4y = 0
then solve the equation for y. y in this equation is y = 24/11.
possible ordered pair is (24/11, 24/11) but we need to substitute this ordered pair into our equations.
7(24/11) + 4(24/11) = 24
4(24/11) - 4(24/11)= 0
both of these equations are true, meaning that the ordered pair is correct.
ANSWER: (24 , 24)
— —
11 11
can i get brainliest?
