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Sophie [7]
2 years ago
14

!!!!!!please solve!!!!!

Mathematics
2 answers:
Vesna [10]2 years ago
4 0

Answer:

1. True

2. True

Step-by-step explanation:

So we are playing with variables here, lets look at 1.

5x + 9 = 29 if x = 4

This means that if x equals 4, would it make the equation true? Let's find out :

Substitute :

5(4) + 9 = 29

20 + 9 = 29

This is true, let's do the same for 2. :

7x - 8 = 13 if x = 3

7(3) - 8 = 13

21 - 8 = 13

This is also true.

Sophie [7]2 years ago
3 0

Answer:

first one x=4

second one x=3

Step-by-step explanation:

<3

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