Question

45 : X * 100 = 900 25 * 4 : X = 20 824 - 240 : X = 800 245 + 50 * = 745 x : 9 *8 = 808 X * 6 : 9 = 32 Va rog repede e cu termenul necunoscut

Answer 1

45 : X * 100 = 900
45 : X  = 900:100
45 : X  = 9
x=45:9
x=5


25 * 4 : X = 20
100:x=20
x=100:20
x=5

824 - 240 : X = 800
240 : X = 824-800
240 : X = 24
x=240:24
x=10

245 + 50 * x= 745
50*x=745-245
50*x=500
x=500:50
x=10


x : 9 *8 = 808
x : 9 = 808:8
x : 9 =101
x=101*9
x=909


X * 6 : 9 = 32
X * 6 = 32*9
X * 6 =288
x=288:6
x=48