Answer:
1.) 1/4x+x=45
4(1/4x+x=45)
x+4x=180
5x=180
x=36
2.) 1/3x+x=64
3(1/3x+x=64)
x+3x=192
4x=192
x=48
3.) 1/5x+x=210
5(1/5x+x=210)
x+5x=1050
6x=1050
x=175
4.) 1/6x+x=161
6(1/6x+x=161)
x+6x=966
7x=966
x=138
5.) 1/3x+x=112\\
3(1/3x+x=112)
x+3x=336
4x=336
x=84
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Verified answer
Answer:
1.) 1/4x+x=45
4(1/4x+x=45)
x+4x=180
5x=180
x=36
2.) 1/3x+x=64
3(1/3x+x=64)
x+3x=192
4x=192
x=48
3.) 1/5x+x=210
5(1/5x+x=210)
x+5x=1050
6x=1050
x=175
4.) 1/6x+x=161
6(1/6x+x=161)
x+6x=966
7x=966
x=138
5.) 1/3x+x=112\\
3(1/3x+x=112)
x+3x=336
4x=336
x=84