In the following equations a and b are equal. which number could be substituted for both a and b to make both equations correct?

a. 15 x 0 = - 36 + a

b. 24 x 8 x 0 = 36 - b

a.-36

b. 51

c. 36

d.-51

Considering the first equation 15 * 0 = - 36 + a

15 * 0 = 0

therefore, - 36 + a = 0

In the second equation

24 * 8 * 0 = 36 - b

Consider the LS

24 * 8 * 0 = 0

Therefore, 36 - b = 0

we are left with the two equations,

36 - b = 0

-36 + a = 0

then, we calculate the number that can be substituted to satisfy the two equations.

solving the equations

b = 36, and a = 36

Therefore, 36 is the number that can be used to substitute a and b in the equations