Answer:
-1/24
Step-by-step explanation:
-7/8 - (-5/6)
Subtracting a negative is like adding
-7/8 + 5/6
Get a common denominator
-7/8 * 6/6 + 5/6 *8/8
-42/48 + 40/46
-2/48
-1/24
Answer:
27
Step-by-step explanation:
Answer:
x = [-b +-sq root (b^2 -4ac)] / 2a a=2 b=-2 c=3
x = [--2 +- sq root(4 - 4*2*3)] / 2*2
x = [2 +- sq root (-20)] / 4] / 4
x1 = 2 + 4.472135955 i / 4
x1 = .5 + 1.1180339887i
x2 = 2 - 4.472135955 i / 4
x2 = .5 - 1.1180339887i
Step-by-step explanation:
4x+y=25
x-3y=16
substitute the value of y into the equation by moving 4x (from the first equation) to the right side
y=25-4x
substitute the given value of y into the equation x-3y=16
x-3(25-4x)=16
x-75+12x=16 (add 75 to both sides of the equation)
13x=91 (divide by 13 both sides of the equation)
x=7
y=25-4x=25-(4×7)=25-28=-3
answer: x=7, y=-3
I think ur problem is missing something bc I got this
