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Mathematics
Leticia
3 February, 03:13
Y=-7x+3
y=-x-3
what is x
what is y
+2
Answers (
1
)
Keenan
3 February, 05:21
0
x = 1, y = - 4
Step-by-step explanation:
Given the 2 equations
y = - 7x + 3 → (1)
y = - x - 3 → (2)
Substitute y = - x - 3 into (1)
- x - 3 = - 7x + 3 (add 7x to both sides)
6x - 3 = 3 (add 3 to both sides)
6x = 6 (divide both sides by 6)
x = 1
Substitute x = 1 into either of the 2 equations for value of y
Substituting in (2)
y = - 1 - 3 = - 4
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