Answer:
i think 14
Step-by-step explanation:
Use substitution when either and x or y is given, for instance: x = 2y + 3 or y = 8x - 9.
Use elimination when a number from both equations can cancel each other out, for example:
2x + 3y = 19
-2x + 7y = 12
Hope this helps!
Answer:
The numbers are 63, 26, & 21
Step-by-step explanation:
110 = 3x + (5 + x) + x
105 = 3x + 2x
105 = 5x
21 = x
Plug it back into the first equation to find your values
Answer:
dont know
Step-by-step explanation:
sorry
8a^2 + 3a^2
11a^2
since both have a^2 you only have to add the coefficients
