Kim Z. answered 02/11/18
Tutor
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Math Tutor and Coach
in order for the left side of the equation to be zero so that it reduces to a true statement, 0 = 0,
either x = 0 and/or x+7 = 0. Solving these you find that x=0 and/or x = -7 to end up with 0=0.
so solutions are x=0, x=-7. Plug each one in to check and see if that works.
Good luck!, Kim