So since we know what x is, we can substitute it into the original equation for x like so to solve for y...
(2y - 8) + 5y - 10 = 0
2y - 8 + 5y = 10
2y + 5y = 18
7y = 18
y = 18/7 (or about 2.57)
So now we know what x is, we can sub it into the below equation to solve for x...
x = 2(18/7) - 8
x = 36/14 - 8 (or about -5.43)
No because 2/5 equals 4/10, which is .4, not .25 :)
Answer:

first create a bracket:

then solve the first bracket:

then open the remaining bracket:

carryout the subtraction operation:

Answer:
quadratic functions have a vertex
Answer:
Equation: 
Step-by-step explanation:
Slope = 4/3
Y-intercept = -3
Therefore;
Equation: y = mx + b
Equation: 
Hope this helps!