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kolbaska11 [484]
3 years ago
10

9) Three times a number added to 12 gives -6. Find the number.​

Mathematics
2 answers:
KatRina [158]3 years ago
7 0

Answer:

The number is -6.

Step-by-step explanation:

Variable x = a number

Set up an equation:

3x + 12 = -6

Isolate variable x:

3x = -18

x = -6

Check your work:

3(-6) + 12 = -6

-18 + 12 = -6

-6 = -6

Correct!

Rudik [331]3 years ago
4 0

Answer:

3x +12=-6

3x=-6-12

3x=-18

x=-18/3

x=-6

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2 years ago
A line passes through (8,2) and (11,-13) write the equation of thr line in standerd form
docker41 [41]

Answer:

Step-by-step explanation:

(8,2),(11,-13)

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8 0
3 years ago
Task 1
CaHeK987 [17]

Answer:

part 1 : y = x^2 + 3x + 5

y = x + 13

solution:

x^2 + 3x + 5 = x + 13

x^2 + 2x -8 = 0

(x+4)(x-2) = 0

x = -4 or x = 2

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if x = 2 , y = 15

part 2 : x^2 + 2x + 1 = 0

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y = 1

task 2

part 1 : Let our two digit number be 26

Next, we rewrite it as a difference of two numbers

26=32-6

We want to square 26 using the identity:  

In this case,

x=32

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 plz make me brainliest

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3 years ago
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