3 years ago

What is 3(x+4)-1=7 explain this to me please

Mathematics

2 answers:

Reika [66]3 years ago

8 0

Answer:

x = - 4/3

Step-by-step explanation:

3(x + 4) - 1 = 7

3x + 12 - 1 = 7

3x + 12 = 8

3x = -4

x = -4/3

earnstyle [38]3 years ago

5 0

1. you use distributive property
3x+12-1=7

2.combine like terms
3x+11=7

3. isolate variable (subtract 11 from both sides)
3x=-4

4. cancel out variable by dividing both sides by 3
3x/3=x -4/3=-1.333…

x=-about 1.333

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