Question

.rezolvati in Z ecuatiile: k)6+3x=-54+x;l)1+9x+=-89-x

Answer 1

k)

6+3x=-54+×

6+54=-3x+×

60=-2x

x=60 supra -2

×=-30

l)

1+9x=-89-x

-9x+×=-1-89

-8×=-90

8×=90

x=90 supra 8 (se simplifica cu 2)

x=45 supra 4