(15u-21)*3+27=234 (36t+98)^14=25

[latex](15u-21)\cdot3+27=234[/latex]   [latex](15u-21)\cdot3=234-27[/latex]   [latex](15u-21)\cdot3=207[/latex]   [latex]15u-21=207:3[/latex]   [latex]15u-21=69[/latex]   [latex]15u=69+21[/latex]   [latex]15u=90[/latex]   [latex]u=90:15[/latex]   [latex]u=6[/latex] ___________________________________________________________ [latex](15\cdot6-21)\cdot3+27=234[/latex] (это проверка)   [latex](90-21)\cdot3+27=234[/latex]   [latex]69\cdot3+27=234[/latex]   [latex]207+27=234[/latex]   [latex]234=234[/latex] =========================================================== [latex](36t+98):14=25[/latex]   [latex]36t+98=25\cdot14[/latex]   [latex]36t+98=350[/latex]   [latex]36t=350-98[/latex]   [latex]36t=252[/latex]   [latex]t=252:36[/latex]   [latex]t=7[/latex] ___________________________________________________________ [latex](36\cdot7+98):14=25[/latex]   [latex](252+98):14=25[/latex]   [latex]350:14=25[/latex]   [latex]25=25[/latex]