What is the solution to the system of equations below? y = negative 3 x + 5 and y = 4 x minus 2
2 answers:
Answer:
(1, 2)
Step-by-step explanation:
A graphing calculator is a handy tool if all you want is a solution. It shows the solution as (x, y) = (1, 2).
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Equate the two expressions for y:
-3x +5 = 4x -2
7 = 7x . . . . . . add 2+3x
1 = x . . . . . . . divide by 7
y = -3(1) +5 = 2 . . . . . . use the first equation to find y from x
The solution is (x, y) = (1, 2).
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