The first one equals 0 but the second one equals 2
0.01x + 0.07y = 0.22
0.03x -0.05y = 0.14
x + 7y = 22
3x - 5y = 14
x = 22 -7y
3*(22-7y) -5y =14
66 - 21y -5y =14
-26y = - 52
y =2
x + 14 = 22
x= 8
Answer:
3 - 
Step-by-step explanation:

The ^2 in the square root cancels each other so
3 - 
Answer:
-2x
Step-by-step explanation:
4x-6x=-2x. You need to combine like terms or subtract 6 from 4 which is -2 the you add then put the x back in
First step, expand the left side (multiply together) (apply FOIL/distribution property)
2nd step, solve so that one side is zero, by adding/subtracting like terms
3rd step, solve for x