2/3x=10
x=10÷2/3
x=10×3/2
x=5×3
x=15
Answer:
The answer would be 94.14
Answer:
2x+7y
Step-by-step explanation:
<u>3x</u>+5y<u>-x</u>+2y =
<u>3x-x</u> = 2x
5y+2y = 7y
3x+5y-x+2y = 2x+7y
Answer:
x=-3
Y=-5
Step-by-step explanation:
2x-y=-1 ×2
3x-2y=1. ×1
4x-2y= -2
3x-2y=1
eliminate y by subtracting
Let the solutions be a and b.
a = -2; b = -10
a + b = -2 + (-10) = -12
ab = (-2)(-10) = 20
(x - a)(x - b) = 0
(x - (-2))(x - (-10)) = 0
(x + 2)(x + 10) = 0
x^2 + 10x + 2x + 20 = 0
x^2 + 12x + 20 = 0
-h = 12
h = -12
4k = 20
k = 5
