3 years ago

Help me out with this one please

Mathematics

2 answers:

Anna11 [10]3 years ago

8 0

Answer:

5) x = -1

6) x = 2

Step-by-step explanation:

5) 5 + 2x + 6 = x + 10

2x + 11 = x + 10

2x + 1 = x

1 = -x

-1 = x

6) (9x + 7) + (-3x + 20) = 39

6x + 27 = 39

6x = 12

x = 2

dlinn [17]3 years ago

8 0

Answer:

For question 5, x= -1

Step-by-step explanation:

Segment Addition Postulate = ab+bc=ac

For Question 5,

(a) + (b) = (c)

5+2x + 6 = x+10

5+2x+6=x+10

To solve that,

5+2x+6=x+10

Add 5+6

11+2x=x+10

Subtract 11 from both sides

2x= x-1

x-1=2x

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