10x + 7 = 4x + 49 6x + 7 = 49 6x = 42 x = 6
Substitute the values of x and y in 10x + 7y, thus: 10x + 7y = 10*9 + 7*6 = 90 + 42 = 132
42 + 42 = 84
42 and 42
It is: 38+4 = 42
10x + 7 = 4x + 49 6x + 7 = 49 6x = 42 x = 6
Substitute the values of x and y in 10x + 7y, thus: 10x + 7y = 10*9 + 7*6 = 90 + 42 = 132
42 + 42 = 84
42 and 42
13 + 42 = 55
It is: 38+4 = 42
28 + 42 = 70
7662
22
42
42
17