Question

como resolver esta ecuacion -5[(3x-9)]-6[2x+4(8x-9]+7}=23

Answer 1

-5[(3x-9)]-6[2x+4(8x-9)+7] = 23
-5[3x-9]-6[2x+32x-36+7] = 23
-15x-9-6[34x-29] = 23
-15x-9-204x+174 = 23
-219x+165 = 23
-219x = 23-165
-219x = -142
219x = 142
x = 142/219
x ≈ 0,64