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the sum of 2x+3y - 6z and 5x-3y
= (2x + 3y -6z) + (5x - 3y)
= 2x + 5x +3y - 3y -6z
= 7x - 6z
To get 8x-y+5z from the sum of 2x+3y - 6z and 5x-3y, we need to add something. Let that something be A
[ (2x + 3y -6z) + (5x - 3y) ] + A = 8x-y+5z
( 7x - 6z ) + A = 8x - y + 5z
Subtract both sides by 7x
( 7x - 6z ) + A - 7x = 8x - y + 5z -7x
A - 6z = x - y + 5z
Add 6z to both sides
A - 6z + 6z = x -y + 5z + 6z
A = x - y + 11z
So, to get 8x-y+5z from the sum of 2x+3y - 6z and 5x-3y, we need to add x - y + 11z.
I hope I didn't misinterpret the question :(
you did fine
so whats the answer..?
@tishara429 Can you explain your answer? I don't understand how you got your answer.
Do you mind explaining it detailedly? Sorry that I'm slow!
ok you add the number which equals the answer u got and then you will have the correct answer so thats how you solve the question.
But there are some unknowns there, you can't add them directly because they are NOT the like terms, right?