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Ex 4.2, 1, , Give first the step you will use to separate the variable and then, solve the equation:, , (a)x-1=0, , x-1=0, Adding 1 to both sides, 4-142 =04 7, , x=1
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Give first the step you will use to separate the variable and then, solve the equation, , (b)x+1=0, , x+1=0, Subtracting 1 from both sides, Xe1—1=0-1, , x=-1
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Give first the step you will use to separate the variable and then, solve the equation:, , (c)x-1=5, , x-1=5, Adding 1 to both sides, x-14+1=54+1, , x=6
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Give first the step you will use to separate the variable and then, solve the equation:, , (d)x+6=2, , x+6=2, Subtracting 6 from both sides, x+6-6=2-6, , x=-4
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Give first the step you will use to separate the variable and then, solve the equation:, , (e)y-4=-7, , y-4=-7, Adding 4 to both sides, y-4+4=-7+4, , y=-3