Algebraic Substitution

Front

What is algebraic substitution?

Back

Algebraic substitution is the process of replacing a variable in an expression or equation with a specific value to simplify or solve it.

Front

If x=5, what is the value of 7x-1?

Back

34

Front

If a = 3 and b = 4, what is the value of 2a + 3b?

Back

18

Front

If y=4, what is the value of 3y+5?

Back

17

Front

If x=3, y=6, and z=7, what is the value of 2x - z?

Back

-1

Front

What is the first step in solving an equation using substitution?

Back

The first step is to identify the variable to be substituted and the value it will be replaced with.

Front

How do you evaluate an expression after substitution?

Back

After substitution, perform the arithmetic operations in the expression according to the order of operations (PEMDAS/BODMAS).

Front

What does PEMDAS stand for?

Back

PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What is the value of 4x + 2 when x = 2?

Back

10

Front

If x = 10, what is the value of 5x - 3?

Back

47