Answer:

2×(15+20) = (2×15)+(2×20)

70=70

Answer:

The answer is 2.

Step-by-step explanation:

Note: follow the PEMDAS rule. That is, Parenthesis first, then Exponent, then Multiplication or Division, then Addition or Subtraction

2 x ( 15 + 20 ) = ( ? x 15) + (2 x 20) ​

2 x 35 = ( ? x 15) + 40 ​

70 = ( ? x 15) + 40

70 - 40 = ( ? x 15) + 40 - 40

30 = ? x 15

30 / 15 = ? x 15 / 15

? = 2

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