It is equal to an algebraic expression because it does not contain an equality sign
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It equals: -40x+50
If 4x - 2x + 4 = 10, the solution is 2x + 4 = 10 and x = 3.
Let the unknown number be X: -4x-10 = 2 -4x = 2+10 -4x = 12 x = -3 Remember that a minus multiplied by a minus is equal to a plus: -4*-3 = 12
Yes.
4x-10 = -6