(i) For quadratic equation 10x2 + 10x + 1 = 0, what is the value of 4 + B?
(ii) If 2x + y = 12 and 3x - y = 13, find the value of x.
Answers
Answered by
1
(2) 2x +y =12
3x-y=13
Eliminate the 1 and 2 equation
5x=25
X=5
Put the value of x in 2 equation
3*5-y=14
15-y=13
Y=2
3x-y=13
Eliminate the 1 and 2 equation
5x=25
X=5
Put the value of x in 2 equation
3*5-y=14
15-y=13
Y=2
Answered by
0
Answer:
answer second
Step-by-step explanation:
2x + y = 12
3x - y = 13
5x = 25
X = 25/5
X = 5
this is the correct value of x
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