solution of the equations 3x-4y=7 and 2x+3y=-1 is not equal to
Answers
Answer:
2
+
2
−2+2=47
.
⇒2−3=5
⇒3−4=7
, =1,=−1
=(1,−1)
( )
⇒=
π
154
⇒
22
154
×7
=7
-
⇒(−1)
2
+(+1)
2
=7
2
⇒
2
+1−2+
2
+1+2=49
⇒
2
+
2
−2+2=49−2
⇒
2
+
2
−2+2=47
,
2
+
2
−2+2=47.
Step-by-step explanation:
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SOLUTION
TO DETERMINE
The solution of the equations
3x - 4y = 7 & 2x + 3y = - 1
EVALUATION
Here the given system of equations are
3x - 4y = 7 - - - - - - (1)
2x + 3y = - 1 - - - - - - (2)
Multiplying Equation 1 by 3 and Equation 2 by 4 we get
9x - 12y = 21 - - - - - (3)
8x + 12y = - 4 - - - - - (4)
Adding Equation 3 and Equation 4 we get
17x = 17
⇒ x = 1
Putting x = 1 in Equation 1 we get
( 3 × 1 ) - 4y = 7
⇒3 - 4y = 7
⇒ - 4y = 4
⇒ y = - 1
FINAL ANSWER
Hence the required solution is
x = 1 & y = - 1
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