Question

11) -3(1 + 6r) = 14 - r 12) 660+6)-5=1+6v 13) -4k + 2(5k - 6) = -3k - 39 14) -16 + 5n=-71-

Answer 1

-3(1+6r) = 14 -r

-3-18r = 14 - r

-3-14 = -r +18r

-17 = 17r

17r/17 = -17/17

r = -1