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India Mcgrath
Mathematics
12 June, 13:31
Solving a system of equation
x+5y=15
-3x+2y=6
+2
Answers (
1
)
Rockette
12 June, 13:35
0
(0,3)
y=3
x=0
Step-by-step explanation:
x+5y=15
-3x+2y=6
solve the equation
x=15-5y
-3x+2y=6
substitute the value of x into an equation
-3 (15-5y) + 2y=6
distribute
-45-15y+2y=6
add 15 to 2
-45-17y=6
add 45 from both sides
17y=51
divide both sides by 17
y=3
substitute the value of y into an equation
x=15-5•3
multiply 5 to 3
x=15-15
subtract
x=0
(0,3)
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