1+ 3z= 40 what’s the answer to this problem I’m confused???

Mathematics

2 answers:

stepan [7]3 years ago

8 0

Answer:

Step-by-step explanation:

subtract 1 on both sides

then divide by 3

to get 13

babymother [125]3 years ago

5 0

Answer:13

Step-by-step explanation:

You have to find what "z" is so you would so 1+3 x Z so what would equal 40 when doing 1+3 x 13 = 40 so 13 would be your answer

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Let the original number of seats in a row be x;
Let the number rows be y;

( x + 3) * (y - 2 )= 72 and x * y = 72 => 72 + 3 * y - 2 * x = 72 => 3 * y = 2 * x;
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1. x = 3 => y = 72 / 3 => y = 24;
2. x = 6 => y = 72 / 6 => y = 12;
3. x = 9 => y = 72 / 9 => y = 8;
4. x = 12 => y = 72 / 12 =. y = 6;
5. x = 24 =. y = 72 / 24 => y = 3;
6. x = 36 => y = 72 / 36 => y = 2;
7. x = 72 => y = 72 / 72 => y = 1;

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