Matemáticas, pregunta formulada por montoyadanielafrie, hace 2 meses

18x+5x+9=-3x+1
$18 \times + 5 \times + 9 = - 3 \times + 1$
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Adjuntos:

vevafigueroavalz845: 7) (-2x + 3 = -4x +1) (-2x +4x = 1 -3) (2x = -2) (x = -2/2) (x = -1) 8)(-3x + 8 = -22) (-3x= -22 - 8) (x = -30/-3) (x = 10) 9) (-18x + 5x + 9 = -3x - 1) (-18x + 5x +3x = -1 -9) (-10x = -10) (x = -10/-10 ) (x = 1)

vevafigueroavalz845: 10) (6 - 5x + 2x = 8 - 4x) (-5x +4x +2x = 8 - 6) (1x = 2) (x = 2/1) (x = 2) 11) (5x + 1= 3x -4) (5x -3x = -4-1) (2x =-5) (x = -5/2) (x = -2.5) 12) (7x - 3 = 9x +5) (7x -9x = 3 +5) (-2x = 8) (x = 8/-2) (x = -4) 13) (x+ 2= 7) (x = 7 -2) (x = 5) 14) (4x -2= 8) (4x= 8 +2) (x = 10/4) (x = 2.5) 15) (2x =12) ( x = 12/2= 6)

vevafigueroavalz845: 16) (8x -21 = 3) (8x = 3 + 21) (x = 24/8) (x= 3) 17) (3x -2 -6x = 2 -2x) (3x -6x +2x= 2 +2) (-1x = 4) (x = 4/-1 = -4) 18)(3x +3 = x +1)(3x-x = 1 -3) (2x= -2) (x = -2/2 = -1) 19)(2x + 3 = -5x -1) ( 2x +5x = -1 -3)(7x = -4)(x = -4/7) 20)(7x = 3x +8)(7x -3x = 8) (4x = 8/4) (x= 2)