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djyliett [7]
2 years ago
10

Hi! So, I know I got this answer wrong, but I wasn't sure how to solve an equation with signs like: [brackets] in it, I've inclu

ded my problem as an example, but can someone please teach me what those brackets mean, and how do I go about solving an equation (using this problem as an example) with brackets like these?

Mathematics
1 answer:
dimaraw [331]2 years ago
8 0

Step-by-step explanation:

Brackets is the bigger version of parentheses, you first solve the questions inside the parentheses, then move onto brackets.

For example, this question:

x=-1\\y=-2\\z=3

5x-y[7-4(z-y)]

<u>plug in x, y, and z.</u>

5(-1)-(-2)[7-4(3-(-2))]
5(-1)-(-2)[7-4(5)]

5(-1)-(-2)[7-20]

5(-1)-(-2)[-13]

-5-(-2)[-13]

-5-26

-31

I hope you understand better now.

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