Using elimination method to find y
3x - 4y = -15 (multiply 4)
4x + 3y = 5 (multiply 3)
------------------------------------
12x - 16y = -60
12x + 9y = 15
--------------------- - (substract)
-25y = -75
y = 3
Using subtitution method to find x
3x - 4y = -15
3x - 4(3) = -15
3x - 12 = -15
3x = -3
x = -1
The solution (-1,3)
The answer to 5,22 as a fraction is 5/22
Answer:
1.92307692308 or 1.92
Step-by-step explanation:
Brainliest?
0.363636363636
<span>..................=<span>411</span></span>
Explanation:
Le <span>x=0.363636363636..................</span>
Now as there are two digits repeating immediately after decimal point, we multiply above by 100 and get
<span>100x=36.363636363636..................</span>
Now subtracting first equation from second we get
<span>99x=36</span> and hence <span>x=<span>3699</span>=<span><span>9×4</span><span>9×11</span></span>=<span>4<span>11</span></span></span>
