4m-3n=23 3m+4n =11 find m and n
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Answer:
m=5
n=-1
Step-by-step explanation:
3(4m-3n=23)
4(3m+4n=11)
12m-9n=69
12m+16n=44
- - -
__________
0- 25n=25
___________
n=-1
4m-3(-1)= 23
4m+3=23
4m=20
m=5
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