9z-5z = 30+z
3z = 30
z = 10
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Ten. That means 3x equals 30, and 30 divided by three is ten.
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(x+5)(x+6) equals x^2 +11x+30
I am having difficulty understanding your question. 12 + 20 = 10 is obviously false (12 + 20 = 32).If 4x + 14 = 2x + 30, then x must equal 8.
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