47x + 31y = 63
31x + 47y = 15
1 answer:
Answer:
x = 2, y = -1
Step-by-step explanation:
47x + 31y = 63...eqn 1
31x + 47y = 15...eqn 2
multiply eqn 1 by 47 to get eqn 3 and multiply eqn 2 by 31 to get eqn 4...
=> 2209x + 1457y = 2961...eqn 3
=> 961x + 1457y = 465...eqn 4
subtract eqn 4 from eqn 3
=> 1248x = 2496
=> x =2
subst x =2 in eqn 1
=> 94 + 31y = 63
=> 31y = -31
=> y = -1
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Step-by-step explanation:
2/2x165/9-55/6x3/3
326/18-165/18
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Answer:
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hope this helps
have a good day :)
Step-by-step explanation:
Just sketch two lines crossing each other like a street intersection.
-128y^2 x y^1 +2 = -128y^3
Answer:
7.52
Step-by-step explanation:
- Write it out: 3.76 × 2
- 3.76 × 2 = 7.52
I hope this helps!
