Answer:
(-3,-8)
x= -3, y= -8
Step-by-step explanation:
I.) (5x+3)/4-(2x-4)/3=5
Clear fractions:
3·((5x+3)/4)=15x+9
4·((2x-4)/3)=8x-16
15x+9-(8x-16)=5
15x+9-8x+16=5
Combine like terms:
7x+25=5
7x=-20
x=-20/7
II.) (3/11)·(5/6)-(9/12)·(4/3)+(5/13)·(6/15)
Remember PEMDAS
So first multiply:
3/11·5/6=15/66
9/12·4/3=3/3·1/1=3/3=1
5/13·6/15=1/13·6/3=6/39=2/13
(15/66)-1+(2/13)
Combine:
15/66-1/1=15/66-66/66=-51/66
-51/66+2/3=-51/66+44/66=-7/66
Answer: -7/66 :)
-4x + 3y = 6
-4x + 4x + 3y = 6 + 4x
<u>3y</u> =<u> 6 + 4x</u>
3 3
y = 2 + 4/3x
-4x + 3(2 + 4/3x) = 6
-4x + 6 + 4x = 6
-4x + 4x + 6 = 6
0x + 6 = 6
<u> -6 -6</u>
<u>0x</u> = <u>0</u>
0 0
x = 0
-4(0) + 3y = 6
0 + 3y = 6
<u>+0 +0</u>
<u>3y</u> = <u>6</u>
3 3
y = 2
(x, y) = (0, 2)
-12.6 as a percent is -1260%
