1.

2x + 12 = 3 - x what is the answer​

Answer»

Answer:

Rearrange terms

2+12=3−

2x+12={\COLOR{#c92786}{3-x}}2x+12=3−x

2+12=−+3

2x+12={\color{#c92786}{-x+3}}2x+12=−x+3

2

Subtract 

12

1212

 from both sides of the equation

2+12=−+3

2x+12=-x+32x+12=−x+3

2+12−12=−+3−12

2x+12{\color{#c92786}{-12}}=-x+3{\color{#c92786}{-12}}2x+12−12=−x+3−12

3

Simplify

Subtract the numbers

Subtract the numbers

2=−−9

2x=-x-92x=−x−9

4

Subtract 

xx

 from both sides of the equation

2=−−9

2x=-x-92x=−x−9

2+=−−9+

2x+{\color{#c92786}{x}}=-x-9+{\color{#c92786}{x}}2x+x=−x−9+x

5

Simplify

Combine like terms

Combine like terms

3=−9

3x=-93x=−9

6

Divide both sides of the equation by the same term

3=−9

3x=-93x=−9

33=−93

\frac{3x}{{\color{#c92786}{3}}}=\frac{-9}{{\color{#c92786}{3}}}33x=3−9

7

Simplify

Cancel terms that are in both the numerator and denominator

Divide the numbers

=−3

x=-3x=


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