Question

3(x-1)+2(x+4)=20mi ajuda a responder​

Answer 1

3(x-1)+2(x+4) = 20

3x-3+2x+8 = 20

3x+2x+8-3 = 20

5x+5 = 20

5x = 20-5

5x = 15

X = 15/5

X = 3