-1
2x + 2x + 146 + 26 = 172 4x + 172 = 172 4x = 0 x = 0
Yes because if 1+0=1 than 0 plus b equals b
No answer in integers. Quadratic formula gives roots of x2 + x - 26 = 0 as 5.625 and -4.625
A=0 b=0 c=0
No.
x = y = 0 ?
many solutions
1350
h = 0.538462 14 + 5h + 2h = 5h + 28h 14 + 7h = 33h 14 + 7h - 7h = 33h - 7h 14 = 26h 14/26 = 26/26h 0..538462 = h
It equals 7
-20 = -4x +6 add 20 to both sides 0 = -4x +26 4x = 26 x = 26/4 = 6.5
It equals 6