Selesaikan |x+3y+7|+|x+7y+19|=0 | Microsoft Math Solver

Cari nilai x

x = 2, y = - 3

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Cari nilai y

y = - 3, x = 2

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Kuis

∣ x + 3 y + 7 ∣ + ∣ x + 7 y + 19 ∣ = 0

Soal yang Mirip dari Pencarian Web

Indicating when

∣ x + y + z ∣ = ∣ x ∣ + ∣ y ∣ + ∣ z ∣

https://math.stackexchange.com/questions/472707/indicating-when-x-y-z-x-y-z-holds

You are correct, but there is a simpler approach. This could be generalized to

∣ \sum_{k} a_{k} ∣ = \sum_{k} ∣ a_{k} ∣

if and only if all non-zero elements have the same sign . To prove it, ...

How do solve the following linear system?:

2 x + 5 y - 21 = 0, 11 x + 3 y + 7 = 0

https://socratic.org/questions/how-do-solve-the-following-linear-system-2x-5y-21-0-11x-3y-7-0

See the solution Explanation: By using elimination system Multiply eqn 1 by 3 and eqn 2 by 5

(00) 6 x + 15 y = + 63

\underline{(0) 55 x + 15 y = - (0) 7} \leftarrow Subtract

How do solve the following linear system?:

11 x + 3 y + 7 = 0, - 6 x - 2 y = - 8

https://socratic.org/questions/how-do-solve-the-following-linear-system-11x-3y-7-0-6x-2y-8

x = - \frac{1 9}{2}, y = \frac{6 5}{2}

Explanation: Multiplying the first equation by

2

and the second equation by

3

and adding both

4 x = - 38

What is the shape of the graph

∣ z - 1 ∣ + ∣ z + i ∣ = 2

in the complex plane?

https://math.stackexchange.com/q/1552958

∣ a - b ∣

represents the distance between the two points a and b in the complex plane. What geometric shape is defined by the sum of two distances being constant ? :-

)

Equations and inequalities as parameters: proving that an equation holds.

https://math.stackexchange.com/questions/598192/equations-and-inequalities-as-parameters-proving-that-an-equation-holds

ok let us consider following cases : first side is just

- x - y + 5

,second case is

x + y + 2

5 + 2 = 7

to be more deeply,let us take such situations

y = 1

x = 4

∣ x + y - 5] + ∣ x + y + 2 ∣ = x + y - 5 + x + y + 2 = 2 * x + 2 * y - 3 = 2 * (x + y) - 3 = 2 * (5) - 3 = 7

Product of affine varieties

https://math.stackexchange.com/questions/602269/product-of-affine-varieties

y \in Y

X \to X \times Y, x \mapsto (x, y)

is continuous (in fact it is a morphism). Hence, the preimage

{x : (x, y) \in Z_{i}}

is closed. Since closed sets are stable under arbitrary ...

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