Question

Afla valoarea lui x:a)(80:10).x=912 b) x-(428:2-848;4)=505:5 c)626:2-x=864:4-918:6 d)x
.(100-9x9-2x8)=405 e)x-(135x6)=420:5-14

Calculeaza valoarea lui x: a)723+455:7-x=523 ,b)(915:5)-x=179 c)(x.2-40):10=12

Answer 1

8x =912
x=912:8
x= 114

x- ( 214 - 212 ) = 101
x-2 = 101
x= 101 +2
x = 103

313 - x = 216 - 153
313 - x = 63
x = 313-63
x = 250

x ( 100 - 81 - 16 ) = 405
x × 3 = 405
x = 405:3
x =135

x- 810=84 - 14
x- 810 = 70
x = 70+810
x = 880

723 + 65 - x = 523
788 -x = 523
x = 788 - 523
x =265

183- x =170
x = 183 -170
x = 13

x × 2 - 40 = 12×10
2x - 40 = 120
2x =120 +40
2x = 160
x = 160 :2
x = 80