3y - 4 = 6y - 19
Add 19 to each side:
3y + 15 = 6y
Subtract 3y from each side:
15 = 3y
Divide each side by 3:
5 = y
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5y4
Yes, x = 2 is the solution.
r=0 is the solution...
No because the solution is 10.3
solution with [OH-] = 2.5 x 10-9 , A solution with [H+] = 1.2 x 10-4, A solution with pH = 4.5