Algebra grade 8 2nd term

Translate: two times the sum of a number and five

• 2 + y +5

• 2 (y+5)

• 2y+5

• 2-y+5

Solve

• 4

• 0

• 2

• 9

Which equation models the situation below?

The difference of a number and 3 is multiplied by -2 and the answer is -10. Find the number.

• $-2\left(x-3\right)=-10$

• $-3\left(x-2\right)=-10$

• $x-3\times-2=-10$

• $-2\left(x+3\right)=-10$

Which equation models the situation below?

The sum of a number and 5 is multiplied by -3 and the answer is -24. Find the number.

• $-3\left(x+5\right)=-24$

• $x+5\times-3=-24$

• $x-15=-24$

• $-3x+5=-24$

What term is represented by the algebra tiles?

• 3
• -3
• -3x
• -3x²

• 3

• 4

• 8

• 16

• 5

• 25

• 6

• 12

• 3

• 24

if x + y = 7 , a - 2b = 4 then the numerical value of the expression

a (x + y ) - 2b (x + y ) = .........

• 11

• 3

• 28

• 24