Question

Ma ajuta cineva sa fac aceaste puncte va rog?!!! Dau coroana!!

Answer 1

a)x+5•(33+128)=895 x+5•161=895 x+805=895 x=895-805 x=90 b)x-53•(49-3•12)=996 x-53•(49-36)=996 x-53•13=996 x-689=996 x=996+689 x=1685 c)53+2•x=x+111 2x-x=111-53 x=58 d)23+5•x=2•x+74 5x-2x=74-23 3x=51 x=51:3 x=17

Answer 2

a)x+5•(33+128)=895

x+5•161=895

x+805=895

x=895-805=90

b)x-53•(49-3•12)=996

x-53•(49-36)=996

x-53•13=996

x-689=996

x=996+689=1685

c)53+2•x=x+111

2x=x+111-53=x+58

2x-x=58

x=58

d)23+5•x=2•x+74

5x=2x+74-23=2x+51

5x-2x=51

3x=51

$x = \frac{51}{3} = 17$