Solve the system of equations 3x + y = 3 and 7x + 2y = 1.
1 answer:
Answer:
(x, y) = (-5, 18)
Step-by-step explanation:
You have done the first two steps.
<h3>3.</h3>7x +2(3 -3x) = 1 . . . . . equation with y substituted
7x +6 -6x = 1 . . . . . . . eliminate parentheses using the distributive property
x = -5 . . . . . . . . . . . . . subtract 6 from both sides, collect terms
<h3>4.</h3>y = 3 -3(-5) . . . . . . . . use the substitution equation to find y
y = 18
The solution is (x, y) = (-5, 18).
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Answer:
1)
2) After 8 minutes delivering fuel the tanks will have 121 gallons of fuel
Step-by-step explanation:
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