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Sagot :
Answer:
[tex]3( - 2x + 5z) + 2(3z - 2y) + 7(x - 3z) \\ \\ - 6x + 15z + 6z - 4y + 7x - 21z \\ \\ x - 4y + 21z - 21z \\ \\ = x - 4y[/tex]
I hope I helped you^_^
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
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