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Attempt following question by selecting a choice to answer.
f
Solve the linear system.
4
x
+ 5
y
= 23
7
x
- 5
y
= -1
DDDD ffff
A.
f
(3, 3)
B.
f
(1, 3)
C.
f
(1, 2)
D.
f
(2, 3)
ff
D
View Solution Steps
Step 1: [Equation 1.]4
x
+ 5
y
= 23
Step 2: [Equation 2.]7
x
- 5
y
= -1
____________
Step 3: [Add the equations.]11
x
= 22
Step 4: [Solve for
x
.]
x
= 2
Step 5: [Substitute
x
= 2 in equation 1.]4(2) + 5
y
= 23
Step 6: [Multiply.]8 + 5
y
= 23
Step 7: [Subtract 8 from each side.]5y = 15
Step 8: [Solve for
y
.]
y
= 3
Step 9: The solution for the linear system is (2, 3).
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