Корень уравнения (15u-21)*3+27=234

(15u-21)*3+27=234(15u-21)*3=234-27(15u-21)*3=207(15u-21)=207:3(15u-21)=6915u=69+2115u=90u=90:15u=6 (36t+98):14=25(36t+98)=25*14(36t+98)=35036t=350-9836t=252t=252:36t=7 (12v+30v+42):6=2142v+42=21*642v+42=12642v=126-4242v=84v=84:42v=2