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Mathematics
Gael Keller
29 May, 15:55
X = 10 + y
x - 5y = - 18
+1
Answers (
1
)
Hawkins
29 May, 16:45
0
The solution of given equations are (17,7).
Step-by-step explanation:
The given equations are
x = 10 + y ... (1)
x - 5 y = - 18 ... (2)
substitute 'x' value in equation (2), we get
10 + y - 5 y = - 18
subtracting '10' on both sides, we get
10 - 4 y - 10 = - 18 - 10
cancelled '10' on left hand side, we get
-4 y = - 28
dividing '4' on both sides and simplification we get
y = 7 ... (3)
substitute the y = 7 in equation (1)
x = 17
the solution of given system is (17,7).
verification:-
put x = 17 and y = 7
x - 5 y = - 18
17 - 5 (7) = - 18
17 - 35 = - 18
-18 = - 18
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