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2 years ago

Solve the system of equations using the elimination method. 2x - 3y = 50; 7x + 8y = -10

Mathematics

2 answers:

Sonbull [250]2 years ago

5 0

Answer:

See the picture and u will get the answer

Klio2033 [76]2 years ago

3 0

Answer:

x=10

y=-10

Step-by-step explanation:

multiply first row by 7

14x−21y=350

7x+8y=−10

multiply second row by 2

14x−21y=350

14x+16y=−20

subtract the first row by the second row

−37y=370

solve for y

y=−10

substitute y=-10

14x−21×−10=350

solve for x

x=10

and thats your answer

x=10

y=-10

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