1.х+3х=3562.х=5-1483.4х+114+х+х=4564.3х+5(х-68)=3165.7х-38=х-14+78

1)4х=356 х=89 2)х=-143 3)6х=342 х=57 4)8х=656 х=82 5)6х=102 х=17

1. x+3x=4x 4x=356 x=356/4=89 2/ x=5-148 x=-143 3/ 4x+114+x+x=456 4x+x+x=456-114 6x=352 x=342/6 x=47 4/ 3x+5(x-68)=316 3x+5x-340=316  8x=656 x=656/8 x=82 5/ 7x-38=x-14+78 7x-x=-14+78+38 6x=102 x=47