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Keyla Schmitt
Mathematics
24 December, 10:12
Y = - 4x + 15 y = 4x - 41 substitution
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Joselyn
24 December, 10:40
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Substitute y = - 4x + 15 to the equation y = 4x - 41:
-4x + 15 = 4x - 41 subtract 15 from both sides
-4x = 4x - 56 subtract 4x from both sides
-8x = - 56 divide both sides by (-8)
x = 7
Put the value of x to the first equation:
y = - 4 (7) + 15
y = - 28 + 15
y = - 13
Answer: x = 7 and y = - 13 → (7, - 13)
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