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Mathematics, 19.11.2020 01:00 neariah24

From the set {5, 7, 40}, use substitution to determine which value of x makes the equation true. 7(x + 35) = 280

A. 7
B. none of these
C. 40
D. 5

Please help me

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From the set {5, 7, 40}, use substitution to determine which value of x makes the equation true. 7(...

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