Solve 3x+7=1.
3x+7 = 1. We can describe this equation as a stroy. First x was multiplied by 3 and then 7 was added to it to get 1. Now we need to reverse the story.
last thing done was +7, so reversing it gives us -7.
1 -7 = -6
then it was multiplied by 3, so to reverse it we need to divide by 3.
-6 /3 = -2
that means x=-2
we can check the answer by substituting x=-2 to the equation and see if it holds.
3(-2) + 7 = -6 +7 = 1
correct!
KW
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