Ha! 3 equations of 3 unknown ... :-)Let's see if I still remember ...Sorry, it will take a little bit (English is not my language ...)
Hello.
The answer is
-4c^2+4c+6
You have to combine the regular numbers that is 4 and 2 that adds to 6.
Then there is 7c-3c which gives u 4c and then whats left is -4c^2.
Have a nice day
Combine like terms. The 5x is grouped to the 8x and the -7 isgrouped with the -55.
This means 5x + 8x = 13x and -7 - 55 = -62
The new expression is 13x - 62. We can't find the exact value of x because the expression wasn't set equal to anything.
360 because the sides are 120, 130, 60, and 50
