Substituting Values into Equations and Expressions

A symbol, typically represented as 'x' or 'y,' that can take on different values in an equation or expression.

• Linear Equation

• Variable

• Coefficient

• Constant

A method of solving a system of linear equations by substituting one equation into another to find the values of the variables.

• Substitution

• Elimination

• Inequality

• Linear Function

A value or set of values for the variable(s) that make an equation true.

• Slope

• Y-Intercept

• Solution

• Graph

Work out the value the expression when

a = -2, b = 3, c = -4 and d = 6.

a + 2c

Evaluate the expression.

• 3

• -1.5

• 1.5

• -3

Evaluate each expressions when x=2. Then match the expression to the correct answer.

• 10

• x + 7

• 4

• 14 - x

• 5

• 3x - 1

• 9

• 8 / x

• 12

• 5x

Mathematical Equivalence

OFF

Mathematical Equivalence

ON

Evaluate the expression.

• 2,592

• 1,536

• 614.4

• 2,384

Work out the value the expression when

a = -2, b = 3, c = -4 and d = 6.

bd - 10