Asked by Lisa

Simplify:


[5(4-x) + (25-9)] + [63(5y + 15) – 4]

Answers

Answered by MathMate
Remove brackets from outside in, and apply distributive laws as necessary:

[5(4-x) + (25-9)] + [63(5y + 15) – 4]
= 5(4-x) + (25-9) + 63(5y + 15) – 4
= 5*4-5x + 16 + 315y + 63*15 - 4
= 20 -5x + 16 + 315y + 945 -4
= 977 -5x + 315y
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