-9y + 8 = -91
-9y = -91 -8
-9y = -99
y = -99
----
-9
y = 11
-99/-9 = 11 because -9X11 = -99
It is the property that equals plus equals are equals.
y = 16/33
2048
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 12 + 34 + 56 + 78 + 91 + 7894561230 + 123456789 = 8018018326
91 x 8 = 728
The slope is 0.
9y + 10 = - 8 subtract 10 from both sides 9y = -18 Divide by 9 on both sides y = -2
-9
Y=30
-8-5y = 12-9y 9y-5y - 12+8 4y = 20 y = 5
91+8=99 Hope I helped. :)
-8 - 5y = 12 - 9y -8 + 4y = 12 4y = 20 y = 20/4 or 5
2x+5=-91-10x 12x+5=-91 12x=-96 x=-8
1. 6x - 5y = 22 2. 5x - 9y = -1 1 times 5: 30x - 25y = 110 2 times 6: 30x - 54y = -6 Subtract : 29y = 116, so y = 4 and x therefore = 7
8 + 91 = 99
subtract 19 from 91. this will give you 8X equals 72. then you divide 72 by 8, and therefore X will equal to 9
The solution to the system of equations x-9y=65 and 6y-8x=8 is (-7,-8).The easiest way to do substitution is to find the variable that can be isolated the easiest, that is, get either x or y alone. The easiest variable to get alone is the x in the first equation. All you need to do is add 9y to each side. Working through the substitution:The system of equations:x-9y=656y-8x=8Step 1: Get a variable alonex-9y=65x-9y+9y=65+9yx=9y+65Step 2: Substitute into the other equation6y-8x=86y-8(9y+65)=8 → Expand6y-72y-520=8 → Combine like terms-66y-520=8 → Add 520 to both sides-66y=8+520 → Simplify-66y=528 → Divide by -66 to find yy=-8Step 3: Substitute y=-8 into the first equationx=9y+65x=9(-8)+65x=-72+65x=-7The solution to the system of equations x-9y=65 and 6y-8x=8 is (-7,-8).