99%+91×(213-17)

99%+91×(213-17)


99%+91×(213-17)=99%+91×213-91×17,=99%+14-13,=1.99.



42x + 25X = 134 next 13 (x + 5) = 169 next 2.5x = 14 next x-7.9 = 2.6 next X + 4.8 = 7.2


42x + 25X = 134 67x = 134 x = 2
2.13(x+5)=169 13x+65=169 13x=104 x=8
3.2.5x=14 x=5.6
4.x—7.9=2.6 x=2.6+7.9 x=10.5
5.x+4.8=7.2 x=7.2-4.8 x=2.4