Question 132678
The problem is: Solve the system by using substitution
3x = 4y + 9
y = x - 3
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Substitute to solve for "x":
3x = 4(x-3) + 9
3x = 4x-12+9
3x = 4x-3
Subtract 3x from both sides: Add 3 to both sides:
x = 3
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Substitute to solve for "Y":
y = x-3
y = 3-3 = 0
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Solution: (3,0)
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Cheers,
Stan H.