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2 years ago

15

If 2x -3(x+4)=-5, Then x=

2 answers:

Snowcat [4.5K]2 years ago

4 0

Answer:

<h2>x = -7</h2>

Step-by-step explanation:

$2x-3(x+4)=-5\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\2x+(-3)(x)+(-3)(4)=-5\\\\2x-3x-12=-5\qquad\text{add 12 to both sides}\\\\-x=7\qquad\text{change the signs}\\\\x=-7$

kherson [118]2 years ago

3 0

The answer is -7

2x-3(x+4)=-5

Multiply by -3

2x-3x-12=-5

Collect like terms

-x-12=-5

Move constant to the right to change its sign

-x=-5+12

Add

-x=7

Change the signs

x=-7

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