Resposta :
Resposta:
a)(4x+36)=16x+24x+12
40x-16x+24x+12
40x-40x+12
X=12
b)(-1)(9x)=256x-25
-9x-256x-25
-9x-231x
X=-240
c)(9a-16)=81a+24a+16
-7a=105a+16
-7a-105a+16
-98a+16
a=82
Resposta:
a)(4x+36)=16x+24x+12
40x-16x+24x+12
40x-40x+12
X=12
b)(-1)(9x)=256x-25
-9x-256x-25
-9x-231x
X=-240
c)(9a-16)=81a+24a+16
-7a=105a+16
-7a-105a+16
-98a+16
a=82