Fire truck because there are 6 designs and 6x2=12 but there are 3 left so it is plane, car, then firetruck
Answer:
3x + 5 = 45° + x
In here we can fine like terms by putting the unknown terms together and the whole numbers together example:
3x - x = 45 - 5
After that you can get the value of x
So,
2x = 40
x = 20