Math Algebra Substitutions

Simplify the expression:
2(7 + 5y) - 2

• 12 + 10y

• 14 + 3y

• 12 - 3y

• 16 + 10y

Simplify the expression:
2n - 9n

• 11n

• 18n

• 7n

• 12n

Simplify the expression:
-7(4x + 8n)

• 28 + 42n

• -28 + 42n

• 28 - 42n

• -28 - 42n

Simplify the expression:
5 + 9(5 - p)

• 50 - 9p

• 50 + 9p

• 45 - 9p

• 40 + 9p

Solve for the missing variable:
3 + 5m = 43

• m = 8

• m = 9

• m = 12

• m = 43

Solve for the missing variable:
2 + ⁿ/₅ = 14

• n = 60

• n = 80

• n = 24

• n = 36

Solve for the missing variable:
-8 - 4k = -40

• k = 8

• k = -12

• k = 16

• k = 4

Challenge Question!
Simplify the expression:
9(1-10m) + 5(-8m + 1)

• 130m + 14

• -130m + 4

• 40m +10

• -130m + 14

Write an algebraic expression for:
the product of 5 and a number (n)

• 5 + n

• n + 5

• 5n

• 5/n

If a = 10, solve for b
b = 20-a

• 1

• 10

• 20

• 30