3.(1-q) + 4.(q-5) =5

3(1 - q) + 4(q - 5) = 5
3 - 3q + 4q - 20 = 5
-17 + q = 5
q = 5 + 17
q = 22

3-3q+4q-20 = 5
q-17 = 5
q = 22

maaf kl salah

pembuktian

3.(-21) + 4 (17) = 5
-63+68 = 5