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3 years ago

Simplify: 3(-2x+5z)+2(3z-2y)+7(x-3z)

Mathematics

2 answers:

expeople1 [14]3 years ago

8 0

Answer: x−4y

Step-by-step explanation:

Expand by distributing terms.

-6x+15z+2(3z-2y)+7(x-3z)

−6x+15z+2(3z−2y)+7(x−3z)

Expand by distributing terms.

-6x+15z+6z-4y+7(x-3z)

−6x+15z+6z−4y+7(x−3z)

Expand by distributing terms.

-6x+15z+6z-4y+7x-21z

−6x+15z+6z−4y+7x−21z

Collect like terms.

(-6x+7x)+(15z+6z-21z)-4y

(−6x+7x)+(15z+6z−21z)−4y

Simplify.

x-4y

hodyreva [135]3 years ago

7 0

Answer:

$3( - 2x + 5z) + 2(3z - 2y) + 7(x - 3z) \\ \\ - 6x + 15z + 6z - 4y + 7x - 21z \\ \\ x - 4y + 21z - 21z \\ \\ = x - 4y$

I hope I helped you^_^

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