Answer:
(1, 4)
Step-by-step explanation:
5x-2y=-3 -2x-y=-6 =>
5x-2y=-3
-2x-y=-6 Multiply all three terms by -2: 4x + 2y = 12
Then we have:
5x-2y=-3
4x + 2y = 12
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9x = 9 and so x = 1. Then, using -2x - y = -6, and substituting 1 for x:
-2(1) - y = -6, or
2 + y = 6, or
y = 4
Then the solution is (1, 4)
Answer:
Step-by-step explanation:
√14 cannot be rewritten as the ratio of two integers and thus is irrational.
Similarly, √99 is irrational; √99 = √9√11 is irrational even though √9 is not.
Answer:
The final answer cannot be decided
Step-by-step explanation:
Since 1/4(24x+12)=6(x+1/2)
This can also be written as
24x+12/4=6(x+1/2)
So let's open the bracket from the right side and also solving using the LCM
24x+12/4=6(2x+1/2)
Open the bracket
24x+12/4=3(2x+1)
24x+12/4=6x+3
Cross multiply
24x+12=4(6x+3)
24x+12=24x+12
Collect like terms
24x-24x=12-12
0=0
Therefore the final answer cannot be decided
