5. A wire is (2x-3)m long. A piece of (2x+1)m long is cut out from it. How
long is the remaining piece?
6. If A = 8x – 3y, B = - y – 9 and C = 4x – y; find the value of A + B – C.
7. What should be subtracted from (12x+4y-7z) to get (9x+11y-12z)
can you please answer these questions as much as you can ,please answer me fast
Answers
Answered by
5
Answer:
IN FIRST CONDITION
(2X-3)-(2X+1)
=2X-3-2X-1
=-4
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Answered by
2
Answer:
5=-4
6=4x-3y-9
7=3x-7y+5z
Step-by-step explanation:
5:
(2x-3)-(2x+1)
=2x-3-2x-1
=-4
6:
(8x-3y)+(-y-9)-(4x-y)
=8x-3y-y-9-4x+y
=4x-3y-9
7:
(12x+4y-7z)-A=(9x+11y-12z)
=A=(12x+4y-7z)-(9x+11y-12z)
=A=3x-7y+5z
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