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dexar [7]
3 years ago
7

If x + 3(2x-5) = 6 then x = O -3 3 O 15 O Option 4 O-14

Mathematics
2 answers:
Naily [24]3 years ago
8 0

Answer:

<h3>\boxed{ \boxed{ \bold{ \sf{3}}}}</h3>

Step-by-step explanation:

\sf{x + 3(2x - 5) = 6}

Distribute 3 through the parentheses

⇒\sf{x + 6x - 15 = 6}

Collect like terms

⇒\sf{7x  - 15 = 6}

Move constant to right hand side and change it's sign

⇒\sf{7x = 6 + 15}

Add the numbers

⇒\sf{7x = 21}

Divide both sides of the equation by 7

⇒\sf{ \frac{7x}{7}  =  \frac{21}{7} }

Calculate

⇒\sf{x = 3}

Hope I helped!

Best regards!

Ronch [10]3 years ago
7 0
<h2>x = 3</h2>

Step-by-step explanation:

x + 3(2x - 5) = 6 \\ x + 6x - 15 = 6 \\ 7x = 6 + 15 \\ 7x = 21

\frac{7x}{7}  =  \frac{21}{7}  \\ x = 3

Step 1 Use 3 to open the bracket

Step 2: Collect like terms and simplify

Step 3: Divide both sides by 7

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