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4 years ago

Solve the equation. |x + 7|= 12

Mathematics

2 answers:

qaws [65]4 years ago

7 0

X+7=12
x=5
x+7=-12
x=-19
hope this helps!

grandymaker [24]4 years ago

7 0

If |x + 7| = 12

That means x + 7 either equals 12 or -12. So, you solve for both cases.

x + 7 = 12

Subtract 7 from both sides.

x = 5

---

x + 7 = -12

Subtract 7 from both sides.

x = -19

So, x can be 5 or -19.

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Read 2 more answers

What are the intercepts of 2x + 3y – 6z = 30?

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Intercept of equation 2x + 3y - 6z = 30 is (15, 0, 0) , (0, 10, 0) and (0, 0, -5)

<h3><u>Solution:</u></h3>

Given equation is:

2x + 3y - 6z = 30

We have to find the intercepts

Intercept are the point where equations cut the x- axis, y- axis and z- axis.

y and z both are zero

So substitute y = 0 and z = 0 in given equation

2x + 3(0) - 6(0) = 30

2x = 30

x = 15

<h3>Thus the intercept is (15, 0, 0)</h3>

x and z both are zero

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0 + 3y + 0 = 30

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y = 10

<h3>Thus the intercept is (0, 10, 0)</h3>

x and y are both zero

So substitute x = 0 and y = 0 in given equation

2(0) + 3(0) - 6z = 30

-6z = 30

z = -5

<h3>Thus the intercept is (0, 0, -5)</h3>

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