Answer:
b = 10
Explanation:
We can first use the distributive property to pen the parenthesis,
-2(3x - 5) = -6x + b
(-2)(3x) + (-2)(-5) = -6x + b
-6x + 10 = -6x + b
Adding 6x on both sides gives us,
-6x + 10 (+6x) = -6x + b (+6x)
10 = b, or b = 10
If you want to find x, x can be any real number.