0
2x - 7y = 8
3x - 4y = -1 multiply the first equation by -3, and the second one by 2
-6x + 21y = -24
6x - 8y = -2 add boyh equations
13y = -26 divide by 13 to both sides
y = -2 substitute -2 for y in the first equation
2x - 7(-2) = 8
2x + 14 = 8 subtract 14 to both sides
2x = -6 divide by 2 to both sides
x = -3
Thus the solution is (-3, -2).
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If x equals -8 and xy equals 1 then what does y equal?
-1/8 -8*-1/8 = 1
What is 8 divided by 8 equals?
1
Is 8 plus 8 1?
8+1 equals 9
A equals 6 and b equals 8 so what does c equal?
It equals 10.5 A = 6 B = 8 which is 6+1/3 of 6 C = 10.5 which is 8+1/3 of 8
How do you simplify negative 8 over negative 8?
negative 8 over negative 8 equals 1 (anything over itself equals to 1)
What does 8 over 8 equals?
8 over 8 equals 1. because 8 8ths equals 1
If x equals -8 and xy equals 1 then what does y equal?
-1/8 -8*-1/8 = 1
What is 9-8 equals?
9-8 equals = 1
What is 8 divided by 8 equals?
1
8 pounds 8 ounces equals how much?
It equals 8 and 1/2 lb
What divided by 8 equals 1?
8 does.
Is 8 plus 8 1?
8+1 equals 9
Why 5 plus 1 equals six then 8 minus one equals 0?
8 - 1 = 7
If 1X8 then what is X?
If 1 multiplied by X equals 8, then X equals 8.
What is the answer to -8 plus 9 equals?
-1
How many cups does 8 ounces equal?
8 ounces equals 1 cup. 1 ounce equals 0.125 cup.
A equals 6 and b equals 8 so what does c equal?
It equals 10.5 A = 6 B = 8 which is 6+1/3 of 6 C = 10.5 which is 8+1/3 of 8
