The answer is 124 cm
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You would multiply 9x___ whatever the other number is witch is 4
Step-by-step explanation:
no explanations.I have done the whole sum
Answer:
-1
Step-by-step explanation:
4u-5v=23
-2(2u+4v=16) We multiply by -2 here to destroy u's.
4u-5v=23
-4u-8v=16 we addition both processes
-13v=39 so, v=-3
4u-5(-3)=23, 4u=8 so, u=2
u+v= -3+2= -1