asked 156k views
1 vote
What is x?
7(x – 5) = 9x – 3

asked
User Desa
by
8.3k points

2 Answers

3 votes

Answer:

x = -16

Explanation:

We are presented with the equation 7( x - 5 ) = 9x - 3 and we are asked to find the value of x. The first thing to do with equations with brackets is expand them out to make solving the equation easier. Then you want to collect all the 'x' terms to one side and all the numerical values to the other so we can make solving the equation easier.

→ 7( x - 5 ) = 9x - 3

⇒ Expand out the brackets

→ 7x - 35 = 9x - 3

⇒ Minus 9x from both sides to collect the 'x' terms

→ -2x - 35 = -3

⇒ Add -35 to both sides to isolate -2x

→ -2x = 32

⇒ Divide both sides by -2 to isolate x

→ x = -16

answered
User Jason Welch
by
8.3k points
4 votes

Answer:

x = -16

Explanation:


7(x-5) =9x-3 \\7x -35 = 9x - 3\\3- 35 = 9x - 7x\\-32 = 2x\\x = (-32)/(2)\\\huge \red{\boxed{x = -16}}

answered
User Vijay Agrawal
by
8.8k points

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