Question

126(2,5-х)-173(х-2)=81х-344-237х+711

Answer 1

126*(2,5-х)-173*(х-2)=81*х-344-237*х+711
315-126х-173х+346=81х-344-237х+711
315+346+344-711=126х+173х+81х-237х
294=143х
294/143=х
х=2,06