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1. Select the expressions where x = 3 is a solution


x - 3 = 0


x + 1 = 2


1/5 x = 3


2. Which expression is equivalent to 20c - 8d

2 (10c + 4d)

4 (5c - 8d)

4 (5c - 2d)






PLS help me and watch the video

1 Select the expressions where x 3 is a solutionx 3 0x 1 215 x 32 Which expression is equivalent to 20c 8d2 10c 4d4 5c 8d4 5c 2dPLS help me and watch the video class=

Respuesta :

Answer:

1. x - 3 = 0

2. 4(5c - 2d)

Step-by-step explanation:

For the first question, you need to subsitute the 3 in for x. 3 - 3 = 0.

For the second question, all you need to do is use distributive property. You need to multiply the number outside the parantheses with the numbers inside the parentheses.

4 x 5 = 20

and

4 x -2 = -8

4 (5c - 2d) = 20c - 8d