a) x= 5 b) x= 6 c) x =2 d) x= 10 e)x= -6 f)x=7 g) x= -9 h) x=24,8 i) x=-5
a) x + 5 = 10 x = 10 - 5 x = 5 b) 2x + 3 = 15 2x = 15 -3 2x = 12 x = 6 c) 5x + 13 = 23 5x = 23 - 13 5x = 10 x = 2 d) 3x + 11 = 41 3x = 41 - 11 3x = 30 x = 10 e) -x + 2 = 8 -x = 8 - 2 -x = 6 x = -6 f) -x + 5 = -2 -x = -2 - 5 -x = -7 x = 7 g) -2x - 7 =11 -2x = 11 + 7 -2x = 18 -x = 9 x = -9 h) -5x + 3 = -121 -5x = -121 - 3 -5x = -124 -x = -24,8 x = 24,8 i) -1,5x + 2 = 9,5 -1,5x = 9,5 - 2 -1,5x = 7,5 -x = 5 x = -5
a) 5+5=10 x=5 b) 2*6+3=15 x=6 c) 5*2+13=23 x=2 d) 3*10+11=41 x=10 e) -10+2=8 -x=10 f) -7+5=-2 -x=7 g) -2*-9-7=11 x=-9 h)------------------------- i) -1,5*8,5+2=9,5 x=8,5
