Question

X-3=3-x
2(2+x)-(6-7x)=13x-(1+4x)
(x-1)-(1-x)=2(x-1)-4(1-x)
x+1-7x+1=-2x+1+7x
-x=x-8
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Answer 1

Respuesta:

x-3=3-x

x+x=3+3

2x=6

x=6/2

x=3

2(2+x)-(6-7x)=13x-(1+4x)

4+2x-6+7x=13x-1-4x

2x+7x-13x+4x=-1+6-4

X=1

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

2x-2=2x-2-4+4x

2x-2x-4x=-2-4+2

-4x=-4

x=-4/-4

x=1

x+1-7x+1=2x+1+7x

1+1-1=2x+7x+7x-x

1=15x

1/15=x

-x=x-8

8=x+x

8=2x

8/2=x

4=x

Answer 2

Respuesta:

$x - 3 = 3 - x \\x + x = 3 + 3 \\ 2x = 6 \\ x = 6 \div 2 \\ x = 3 \\ \\ 2(2 + x) - (6 - 7x) = 13x - (1 + 4x) \\4 + 2x - 6 + 7x = 13x - 1 - 4x \\ - 2 + 9x = 9x - 1 \\ 9x - 9x = - 1 + 2 \\ x = 1$

$(x - 1) - (1 - x) = 2(x - 1) - 4(1 - x) \\x - 1 - 1 + x = 2x - 2 - 4 + x \\ 2x - 2 = 3x - 6 \\ 2x - 3x = - 6 + 2 \\ - 1x = - 4 \\ x = 4 \\ \\ x + 1 - 7x + 1 = - 2x + 1 + 7x \\ - 6x + 2 = 1 + 5x \\ - 6x - 5x = 1 - 2 \\ - 11x = - 1 \\ x = \frac{1}{11} \\ \\ - x = x - 8 \\ - x - x = - 8 \\ - 2x = - 8 \\ x = - 8 \div - 2 \\ x = 4$