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Mathematics
16 May, 12:05
3x - 2y = 19
y = 2x - 14
+4
Answers (
1
)
Kaitlyn
16 May, 12:18
0
(9,4)
Step-by-step explanation
You can use substitution:
plug in y=2x-14 into 3x-2y=19
3x-2 (2x-14) = 19
then simplify it
3x-4x+28=19
-x+28=19
-x=-9
divide everything by - 1
x=9
Then plug in x=9 into the equation to find y
y=2x-14
y=2 (9) - 14
y=18-14
y=4
To check your answer plug x and y back into the equation
3 (9) - 2 (4) = 19 check
4=2 (9) - 14 check
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