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3 years ago

What is the solution to the above system of equations?

Mathematics

2 answers:

kow [346]3 years ago

8 0

(x , y) = (7, - 1)

2x + 3y = 11 → (1)

3x + 3y = 18 → (2)

subtracting (1) from (2) term by term eliminates the y- term

(3x - 2x) + (3y - 3y) = (18 - 11)

x + 0 = 7 ⇒ x = 7

substitute x = 7 into either of the 2 equations and solve for y

(1) → (2 × 7) + 3y = 11

14 + 3y = 11

subtract 14 from both sides

3y = 11 - 14 = - 3

divide both sides by 3

$\frac{- 3}{3}$ = - 1

solution is (7 , -1)

pentagon [3]3 years ago

8 0

Answer:

the answer is C. (7,-1)

Step-by-step explanation:

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