The 'solution' is the number that 'r' must be in order to make the statement true.
Here's how to find it:
6r - 1 + 6r = 11
Add 1 to each side:
6r + 6r = 12
Clean up the left side:
12r = 12
Divide each side by 12:
r = 1
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Yes, 3+11=14
6a + 5a = -11 11a = -11 a = -11/11 = -1
(0,7)
22
yes there is.-5x+1=-10-5x=-11-x=-11/5x=11/5