Sum= positive 30 because you add the opposite
The difference between the numbers is also 30
Answer:
one solution
Step-by-step explanation:
2(2b-4)+5=7+2b
4b - 8 + 5 = 7 + 2b
4b -3 = 7 + 2b
4b - 2b = 7 + 3
2b = 10
b = 10/2
b = 5.
it can have only 5 as solution that will be only one solution if we change the value of 5 to other number then the answer will be wrong
The shape of the horizontally sliced pyramid is square
