Question

1)5(4-3х)+8х
2)(2у+5)*4-11у
3)6х-3(х-7)

Answer 1

1)5(4-3х)+8х=20-15х+8х=20-7х
2)(2у+5)•4-11у=8у+20-11у=20-3у
3)6х-3(х-7)=6х-3х+21=3х+21

Answer 2

Спасибо большое!