Answer:
41/6
Step-by-step explanation:
-12+81=-1+6(2a-2)
first distribute:
-12+81=-1+12a-12
combine like terms:
-12+81= -1+12a-12
69=-13+12a
add -13 with 69:
82=12a
divide 82 and 12:
82/12= 41/6
a = 0
given
-12 + 8a =-a + 6(2a -2)
Distribute the righ side
-12 + 8a = -a +6x2a -6x2
-12 + 8a = -a +12a - 12
-12 + 8a = 11a -12
Collect like terms
-12 + 12 = 11a - 8a
0 = 3a
Divide both sides by 3
0/3 = 3a/3
0 = a
