Give first the step you will use to separate the variable and then solve the equation:
$(a).\ x-1=0$
$(b).\ x+1=0$
$(c).\ x-1=5$
$(d).\ x+6=2$
$(e).\ y-4=-7$
$(f).\ y-4=4$
$(g).\ y+4=4$
$(h).\ y+4=-4$
To do:
We have to give first the step we will use to separate the variable and then solve the equation.
Solution:
(a) $x-1=0$
Adding 1 to both sides of the equation we get,
$x-1+1=0+1$
$x=1$
(b) $x+1=0$
Subtracting 1 from both sides of the equation we get,
$x+1-1=0-1$
$x=-1$
(c) $x-1=5$
Adding 1 to both sides of the equation we get,
$x-1+1=5+1$
$x=6$
(d) $x+6=2$
Subtracting 6 from both sides of the equation we get,
$x+6-6=2-6$
$x=-4$
(e) $y-4=-7$
Adding 4 to both sides of the equation we get,
$y-4+4=-7+4$
$y=-3$
(f) $y-4=4$
Adding 4 to both sides of the equation we get,
$y-4+4=4+4$
$y=8$
(g) $y+4=4$
Subtracting 4 from both sides of the equation we get,
$y+4-4=4-4$
$y=0$
(h) $y+4=-4$
Subtracting 4 from both sides of the equation we get,
$y+4-4=-4-4$
$y=-8$
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