Question

a)x+6=12
b)x=(-2).(-5)
c)x.(-10)=100
d)$x^{2} =9$

Answer 1

a)x+6=12
x= 12 -6
x= 6

S{6}


b)x=(-2).(-5)
x= +10

S{10}

c)x.(-10)=100
-10x = 100.(-1)
10x= -100
x= -100/10
x= -10

S{-10}

d)
x= ± √9
x= ± 3

S{ -3 ; +3}