4х-16=х+52(3х+1)=4(3-х)6-(7-4а)=2-2арешите плез уравнения!!

Question

4х-16=х+5
2(3х+1)=4(3-х)
6-(7-4а)=2-2а
решите плез уравнения!!

Answer 1

4x-x=5+16
3x=21
x=7

6x+2=12-4x
10x=10
x=1

6-7+4a=2-2a
6a=3
a = 1/2