Question

determine X com cálculos:
A) 6x= 2x + 16 B) 2x - 5= x+1
C) 2x + 3= x + 4 D) 5x+7= 4x+10
E) 4x-10= 2x+2 F) 4x-7= 8x-2
G) 2x+1= 4x-7 H) 9x+9+3x= 15
I) 16x-1= 12x+3 J) 3x-2= 4x+9

Answer 1

A) 6x = 2x + 16 <=> 6x - 2x = 16 <=> 4x = 16 <=> x = 4
B) 2x - 5 = x + 1 <=> 2x - x = 1 + 5 <=> x = 6
C) 2x + 3 = x + 4 <=> 2x - x = 4 - 3 <=> x = 1
D) 5x + 7 = 4x + 10 <=> 5x - 4x = 10 - 7 <=> x = 3
E) 4x - 10 = 2x + 2 <=> 4x - 2x = 2 + 10 <=> 2x = 12 <=> x = 6
F) 4x - 7 = 8x - 2 <=> 4x - 8x = -2 + 7 <=> -4x = 5 <=> x = -1,25
G) 2x + 1 = 4x - 7 <=> 2x - 4x = -7 - 1 <=> -2x = -8 <=> x = 4
H) 9x + 9 + 3x = 15 <=> 9x + 3x = 15 - 9 <=> 12x = 6 <=> x = 0,5
I) 16x - 1 = 12x +3 <=> 16x - 12x = 3 + 1 <=> 4x = 4 <=> x = 1
J) 3x - 2 = 4x + 9 <=> 3x - 4x = 9 + 2 <=> -x = 11 <=> x = -11