Question

equações do 1° grau

a)4×-4=9×+9=

b)-2+2×=3-3×=

c)8×-16=6×-10

d)5y-15-20+8y=3

e)13×-13-4=6×-17

f)×+4×+18×=60+36+42​

Answer 1

a) 4x-4=9x+9= b)-2+2x=3-3x= c) 8 * - 16 = 6 * - 10d 1)5y; - 15 - 20 + 8y = 3 e )13*-13-4=6*-17; f)x+4x+18x=60+36+42