a)-4y-13=3y-5 b)5x-3(6x-5)=2x-(11x-5)

a)-4y-13=3y-5 -7y=8 /:-7 y=-1 1/7 b)5x-3(6x-5)=2x-(11x-5) 5x-18x+15=2x-11x+5 -13x+15=-9x+5 -4x=-10 /:-4x x=2,5

a) -4y-13=3y-5 -4y-3y=-5+13 -7y=8 y=-1¹/₇ b) 5x-3(6x-5)=2x-(11x-5) 5x-18x+15=2x-11x+5 5x-18x-2x+11x=5-15 -4x=-10 x=2,5

a)-4y-13=3y-5 -7y=8 /:-7 y=-1 1/7 b)5x-3(6x-5)=2x-(11x-5) 5x-18x+15=2x-11x+5 -13x+15=-9x+5 -4x=-10 /:-4x x=2,5