Substitute Variables

Evaluate each expression below(substitute the variables)

m+n+q=

m=8, n=6, p=4, q=2

Evaluate each expression below(substitute the variables)

n+q-p=

Evaluate 6p - 3  when p = 2

• 5

• 15

• 9

• 12

If x = -3, in the equation -2x + y = 15, what is y? Type in the number.

Solve the system by substitution method

x = 3

2x + 5y = 16

• (3,2)

• (3, 0)

• (2, 5)

• (2,10)

Evaluate 15 - m  for m = 7

• 22

• 8

• 2

• 9

• 5

• 25

•  10

• 20

Solve this expression. Substitute the numbers for the variables.

s = 2, y = 4,

y² + ( 10 - 4)^s - 3y

• 34

• 40

• 16

• 26

Substitute x= 3 into the expression 3x+1

• 3

• 9

• 10

• 7