Question

resolva as equações:
a) X +18=76
b) X+25= -75
c) 2 X + 10 =64
d) 3 X - 38=10
e) 3 X=36
f) X = 43
g) 3X4 = 32
h) desafio
8 X = 40 + 3X
2 (X+5) = 30
me ajudem!!!

Answer 1

a) X +18=76 ==> x = 76-18==. x = 58

b) X+25= -75 ==. x = - 75-25 ==. - 100

c) 2 X + 10 =64 ==> 2x=64-10 ==. 2x = 54 ==. x = 27

d) 3 X - 38=10 ==> 3x = 10+38 ==> 3x=48 ==> x = 16

e) 3 X=36==> x = 12

f) X = 43  ==> x = 43

g) 3X - 4 = 32 ==>3x= 32+4 ==. 3x = 36 ==. x = 12

h) desafio 

8 X = 40 + 3X  ==> 8x - 3x = 40 ==> 5x = 40 ==> x = 8

2 (X+5) = 30 ==> 2x+10 = 30 ==. 2x= 30-10==>2x = 20 ==> x = 10