Solve the system : 44 x + 15 y = 1 -7x + 5y = 22
2 answers:
Answer:
Step-by-step explanation:
44x + 15y = 22 (1)
-7x + 5y +1 = 22 Subtract 1 from this equation
-7x + 5y = 21 (2) Multiply this equation by 3
-21x + 15y = 63 (3) Subtract (1) from (3)
<u>44x + 15y = 22</u>
-65x = 41 Divide by - 65
x = 41/-65 Use this value to find y.
x = -0.6308
I can't believe anyone really gave you this.
44(41/-65) + 15y = 22
-27.75 + 15y = 22
15y = 22 + 27.75
15y = 49.75
y = 3.316
I checked this with my calculator that does these sorts of questions. The answers are correct
Answer:
x+2y=4x+2y=4 , x−y=−3x-y=-3
x+y=3x+y=3 , 2x−8y=192x-8y=19
4x+4y=14x+4y=1 , 6x−y=1
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Final Answer: 28