Question

-18×[(-7)+3] = (-18)×X+(-18)×3​

Answer 1

Step-by-step explanation:

a. 18 × [7-3] = 126 + [-54] (+×- = -)

18 × 4 = 126-54

72 = 72

therefore lhs = rhs

b. 21×[-10] = [84]+[126] ( -×- = +)

-210 =/= 210

therefore lhs =/= (is not equal to) rhs

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