# Cual es la solucion de la ecuacion 12 - 8 (4 - 2x) = 4 (10x =21) = 16 Necesito ayuda, gracias!?

### 8 Answers

- MICHAEL KLv 72 months ago
This equation is can not be solved in the way that it is written.

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- Wayne DeguManLv 72 months ago
I assume you mean:

12 - 8(4 - 2x) = 4(10x + 21) + 16

Expanding we get:

12 - 32 + 16x = 40x + 84 + 16

so, 16x - 20 = 40x + 100

i.e. 24x = -120

=> x = -5

:)>

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- KrishnamurthyLv 72 months ago
What is the solution of the equation ?

12 - 8 (4 - 2x) = 4 (10x + 21) + 16

24x = -120

x = -5

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- Ian HLv 72 months ago
Please post in English; use Google translate perhaps.

What are the solutions of these two equations

12 - 8 (4 - 2x) = 4

(10x - 21) = 16

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A: 12 - 8 (4 - 2x) = 4

12 – 32 + 16x = 4

16x = 24, s0 x = 3/2

B: (10x - 21) = 16

10x = 37

x = 3.7

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- Michal SychraLv 72 months ago
12-8(4-2x)=4|+8(4-2x)

12=4+8(4-2x)

12=4+32-16x

12=36-16x|+16x

12+16x=36|-12

16x=24|/16

x=24/16

x=3/2

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- SumDudeLv 72 months ago
verdade? No se matematicas? Quantos anos tiene? no escuala?? pero ... [-8*(4-2x) es -32 + 16x] y ahora 12 + - 32 + 16x -12 + 32 = 4 - 12 + 32 ... 16x = 24 ... 16x/16 = 24/16 ===___ [ 12 - 32 + 16x = 4 ... ]

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