Algebra

Which is the value of x + 2 = 20

• -18

• 18

• 20

• 22

which is the value of x - 7 = 15

• -8

• 8

• 20

• 22

Evaluate the following expression.
5x - 2y. if x = 4 and y = 7

• 2

• 4

• 6

• 8

Evaluate the following expression.
6m - 2n. if m = 5 and n = -3

• 16

• 26

• 36

• 46

Evaluate the following expression.
(x + y)(x - y). if x = 9 and y = 2

• 77

• 88

• 99

• 111

In Algebra, 3a + 5b +7, what do you call in this?

• Algebraic Expressions

• Algebraic Statement

• Expressions Terms

• Statements

In Algebra, It is a fixed value.

• Variable

• Literal Coefficients

• Constant

• Number Coefficients

In Algebra, It is a prefix of a term or the number attached to the variable or product of variables.

• Variables

• Literal Coefficients

• Constant

• Number Coefficients

If y=3, what is the value of the expression 2y+4?

• 10

• 12

• 14

• 16

Solve the equation: 3x=15?

• x = 3

• x = 5

• x = 15

• x = 45