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Mathematics
19 February, 01:45
Y=3x² + 7x - 10
y - 19x = 22
+4
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1
)
Sharon Baker
19 February, 01:56
0
Step-by-step explanation:
Step1: Solvex+y=7for x:
x+y=7
x+y+-y=7+-y (Add - y to both sides)
x=-y+7
Step2: Substitute-y+7forxinx+2y=11:
x+2y=11
-y+7+2y=11
y+7=11 (Simplify both sides of the equation)
y+7+-7=11+-7 (Add - 7 to both sides)
y=4
Step3: Substitute4foryinx=-y+7:
x=-y+7
x=-4+7
x=3 (Simplify both sides of the equation)
x=3 and y=4
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