5-2(x+6)=1
We copy down the 5 under that
5-2(x+6)=1
5
Now we multiply the -2 by the x and get -2x and write that down
after the 5:
5-2(x+6)=1
5-2x
Now we multiply the -2 by the +6 and get -12 and write that down
after the 5-2x:
5-2(x+6) = 1
5-2x-12
Now we bring down the equal sign and the 1:
5-2(x+6) = 1
5-2x-12 = 1
Now on the next line we combine the 5 and the -12 getting -7 and
write that on the next line without the 5 and the -12, but we
bring down the -2x, the = sign and the 1 and we have
5-2(x+6) = 1
5-2x-12 = 1
-7-2x = 1
Next we add 7 to both sides canceling the -7 on the left and giving
8 on the right, and we bring down only the -2x, the = and the 1 to the
next line:
5-2(x+6) = 1
5-2x-12 = 1
-7-2x = 1
-2x = 8
Finally we divide both sides by -2, getting x on the left and -4 on
the right, and we put that on the bottom line.
5-2(x+6) = 1
5-2x-12 = 1
-7-2x = 1
-2x = 8
x = -4
Edwin