Question

resolva as seguintes questões do 1°grau:

a-)7x-12=5x+33

b-)5(x-6)+15=20

c)7(x+2)=3(2x-3)+15

d)8(x+1)=3(x+11)

Answer 1

a) 7×-5×=12+33
2×=45
×=45/2

b) 5×-30+15=20

5×=35
×=7

c) 7×+14=6×-9+15
×=-23+15
×=-8

d) 8×+8=3×+33
5×=41
×=41/5