Question

-2ab-6c=8d
solve for a

Answer 1

EXAMPLE
NOT YOUR MATH PROBLEM

SOLVE FOR Y

5XY - A = 10Z

5XY - A + (A) = 10Z +( A ) ADD ADDITIVE INVERSE A

1
--- [ 5XY = 10Z + A ] MULTIPLY RECIPROCAL X
X

^
THAT WILL CANCEL OUT THE X THERE AND SWITCH IT OVER TO THIS SIDE

1 10Z + A
--- [ 5 Y = --------- ] DO LIKEWISE WITH 5
5 X

10Z + A
Y = ---------
5X

THIS IS SOLVED FOR Y

Answer 2

-2ab - 6c = 8d
-2ac - 6c + 6c = 8d + 6c (add 6c to both sides)
-2ac = 8d + 6c
-2ac = 8d + 6c
----- ------- (divide both sides by -2c)
-2c -2c

final answer a = - 8d + 6c
--------
2c

Answer 3

-2ab-6c=8d
-2ab=8d+6c
--- -- --
-2b -2b -2b

a=- (8d+6c) / 2b

a=-4d-3c/b

Answer 4

tabykhan is wrong because he devided by -2c instead of -2b