Question

a)x+5=8
e)x+9=-1
i)4=x-10
m)3x=15
q)3x-13=8
u)2x=14​

Answer 1

Resposta:

a)

$x + 5 = 8 \\ x = 8 - 5 \\ x = 3$

e)

$x + 9 = - 1 \\ x = - 1 - 9 \\ x = - 10$

i)

$4 = x - 10 \\ x = 4 + 10 \\ x = 14$

m)

$3x = 15 \\ x = 15 \div 3 \\ x = 5$

q)

$3x - 13 = 8 \\ 3x = 8 + 13 \\ 3x = 21 \\ x = 21 \div 3 \\ x = 7$

u)

$2x = 14 \\ x = 14 \div 2 \\ x = 7$