3 years ago

Part A: Solve the equation 7x + 3x − 18 = 6(x + 3), and show your work. (5 points)

Mathematics

2 answers:

Levart [38]3 years ago

7 0

Answer:

Step-by-step explanation:

7x +3x - 18 =6(x +3)

10x - 18 =6x +18

10x - 6x =18 +18

4x =36

x=36 :4

x=9

const2013 [10]3 years ago

7 0

Answer:

$7x \: + 3x \: - 18 = 6(x + 3) \\ 10x - 18 = 6x + 18 \\ 10x - 18 + 18 = 6x + 18 + 18 \\ 10x = 6x + 36 \\ 10x - 6x \: = 6x - 6x + 36 \\ 4x = 36 \\ we \: divide \: both \: sides \: by \: 4 \\ 4x \div 4 = 36 \div 4 \\ x = 9$

hope that will help you

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