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3 years ago

(-3d+4)–(6d–9) (add and subtract linear expressions)

Mathematics

1 answer:

Vlada [557]3 years ago

6 0

Answer:

−9d+13

Step-by-step explanation:

3d+4−(6d−9)

Distribute the Negative Sign:

=−3d+4+−1(6d−9)

=−3d+4+−1(6d)+(−1)(−9)

=−3d+4+−6d+9

Combine Like Terms:

=−3d+4+−6d+9

=(−3d+−6d)+(4+9)

=−9d+13

Answer:

=−9d+13

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$\huge\red{\mid{\underline{\overline{\textbf{QUESTION}}}\mid}}$

<em>85% of the students in Yvan’s school walk to school. If 816 students walk to school, how many students are in the school?</em>

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