Question

Solve and explain 10(9-x)+x​

Answer 1

Answer:

10 (9-x)+x

=} 90 - 10x + x

=) 90- 9x

Step-by-step explanation:

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Answer 2

10(9-x)+x

Open the brackets first:
10*9 - 10*x + x (Remember * is multiply sign)
90 - 10x + x
90 - 9x

Therefore 90 - 9x is the answer.