Question

2. a) 7x - 5 = 0; d) 3 = 2x + 4; b) 2x – 6 = 5x; e) 5x – 8 = 2; c) -8x + 1 = 6x – 10; f) 11x – 9 = 3x + 3.va rog​

Answer 1

Răspuns:

a)

$7x-5=0 => 7x=-5 => x=\frac{-5}{7}$

d)

$3=2x+4 => 2x=3-4 => 2x=-1 => x=\frac{-1}{2}$

b)

$2x-6=5x => 2x-5x=6 => -3x=6 => x=\frac{6}{-3} =-2$

e)

$5x-8=2 => 5x=2+8 => 5x=10 => x=2$

c)

$-8x+1=6x-10 => -8x-6x=-10-1 => -14x=-11 => x=\frac{14}{11}$

f)

$11x-9=3x+3 => 11x-3x=3+9 => 8x=12 => x=\frac{12}{8} => x=\frac{3}{2}$

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