Answer:
45+30+90=165 but it should be 180
if you wrote in 45 on the right then that is incorrect and should be 60. If that is how the task is then it can't be solved.
2
Step-by-step explanation:
d=7
To find d youll have to find it. 9d + 4 = 2d + 53 minus 2d on both sides> 7d+4=53 now minus 4 on both sides> 7d=49 divide 49/7 > d=7
tank you