Question

Calcule o valor de x:

a) 2x-10=x+13
b) 3x+12=x+48
c) 3x=2x+103
d) 5x-26=37-2x
e) 6x=2x+100
f) 2x=205-3x
g) 4x-37=2x+307

ME AJUDEM POR FAVOR!!!

Answer 1

a) 2x-10=x+13
2x-x=13+10
x=23

b) 3x+12=x+48
3x-x=48-12
2x=36
x=36/2
x=18

c) 3x=2x+103
3x-2x=103
x=103

d) 5x-26=37-2x
5x+2x=37+26
7x=63
x=63/7
x=9

e) 6x=2x+100
6x-2x=100
4x=100
x=100/4
x=25

f) 2x=205-3x
2x+3x=205
5x=205
x=205/5
x=41

g) 4x-37=2x+307
4x-2x=307+37
2x=344
x=344/2
x=172

Answer 2

a( 2x -x = 13 +10)  / x=23 
b/( 3x - x = 48 -12 ) ( 2x=36 )( x= 36/ 2 ) x=18
c/(3x -2x )  x=103
d/ ( 5x + 2x= 37+26 ) ( 7x=63 ) ( x+ 63/7 ) x= 9
e/( 6x-2x=100 ) ( 4x=100 ) ( x=100/4 ) x= 25
f/( 2x+3x=205 ) ( 5x=205 ) ( x+ 205/5 ) x=41
g/( 4x-2x=307+37) ( 2x=344) ( x= 344/2 ) x = 172