Respuesta :

Explicación paso a paso:

A. 3x+1=3-(2-2x); 3x+1=3-2+2x; 3x-2x=3-2-1; 1x=0; x=0

B. 5*(x-1)-(1-x^2)=2(x-1)-4(1-x); 5x-5-1+x^2=2x-2-(4-4x); 5x-5-1+x^2=2x-2-4+4x; x^2+5x-2x-4x-5-1+2+4=0

x^2-x=0; x(x-1)=0

x=0

x=1, hay dos soluciones

C. 4*(x-10)=-6*(2-x)-6x; 4x-40=-12+6x-6x; 4x-6x+6x=-12+40; 4x=28; x=28/4=7; x=7

axllxa

3x + 1 = 3 - (2-2x)

3x + 1 = 3 - 2 + 2x

3x - 2x = + 1 - 1

x = 0

5(x - 1) - (1 - x²) = 2(x - 1) - 4(1 - x)

5x - 5 - 1 + x² = 2x - 2 - 4 + 4x

5x - 5 - 1 + x² = 2x - 2 - 4 + 4x

5x - 6 + x² = 6x - 6

x² + 5x - 6x - 6 + 6 = 0

x² - x  = 0

x(x -1) = 0

x = 0    x - 1 = 0

            x = 1

CS = (0 ; 1)

x=1, hay dos soluciones

4(x-10) = -6(2-x) - 6x

4x - 40 = -12 + 6x - 6x

4x - 40 = -12

4x = 40 - 12

4x = 28

x = 28/4

x = 7

Eternamente

☆༒ axllxa  ༒☆