Hi i want to know how to solve this write a few sentence about different ways to show subtraction for problem like 32-15

32-15 = 17

Step-by-step explanation:

We need to solve the given subtraction problem.

32 - 15 = ?

Write each number as the sum of their place values.

We have to subtract there corresponding place values. Here 2 is less than 5 so we can not subtract 5 from 2. Now, we will take 1 ten from 30.

Now subtract 5 from 12 and 10 from 20.

Ones place  =

Tens place =

Resultant number =

Therefore, the value of 32-15 is 17.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18