Question 533861
y = 4x + 10 (equation 1)
y = 3x + 7  (equation 2)
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Plug definition of y from equation 2 into equation 1 and solve for x:
3x + 7 = 4x + 10
7 = x + 10
-3 = x
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Plug definition of x above into equation 2 to find y:
y = 3x + 7 
y = 3(-3) + 7 
y = -9 + 7 
y = -2
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Answer:
x = -3
y = -2