4(5-х)=3х-1 решите уравнение

Question

4(5-х)=3х-1 решите уравнение

Comments

4x5-4x=3x-1

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-4x-3x=20-1

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4(5-х)=3х-120-4х=3х-13х+4х=20+17х=21х=3

Answer 1

4(5-х)=3х-1
20-4х=3х-1
-4х-3х=-1-20
-7х=-21
х=21:7
х=3

Answer 2

4(5-x)=3x-1
20-4x=3x-1
-4x-3x=-20-1
7x=21
x=3