- 3х/7 + 3 ( х - 2/7 ) + 11 = - 7/2 * х + 3 ( х + 1 )

(-3/7)х+3х-6/7+11=(-7/2)х+3х+3

(-3/7)х+(7/2)х=-8+6/7

(43/14)х=-7 1/7

х=(-50/7)*14/43

х=-100/43

х=-2 14/43