Х+у= 20
3х – 3 = 30
Which of x and y satisfy this system of equations?
1 answer:
Answer:
x = 11, y = 9
Step-by-step explanation:
Given the 2 equations
x + y = 20 → (1)
3x - 3 = 30 → (2)
In (2) add 3 to both sides
3x = 33 ( divide both sides by 3 )
x = 11
Substitute x = 11 into (1)
11 + y = 20 ( subtract 11 from both sides )
y = 9
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Step-by-step explanation:
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