Question

3+x/4+3x-7/4
помогитеее

Answer 1

3+x+3x-7/4=4x-4/4=4(x-1)/4=x-1

Answer 2

3+х/4 + 3х - 7/4 = 0
13х/4 = -5/4
13х = -5
х = -135