Плиз помогите поже.....

Question

Плиз помогите поже.....

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Answer 1

1/4(3/4x-1/2)+2/5=1/2
1/4/(3/4x-1/2)=1/2-2/5
1/4/(3/4x-1/2)=1/10
3/4x-1/2=1/4/1/10
3/4x-1/2=5/2
3/4x=3
x=4