Respuesta :
Answer:
b = −0.5
Step-by-step explanation:
Let's solve your equation step-by-step.
−3b+2.5=4
Step 1: Subtract 2.5 from both sides.
−3b+2.5−2.5=4−2.5
−3b=1.5
Step 2: Divide both sides by -3.
-3b/-3 = 1.5/-3
Well b would be -0.5 because to find 4 you need ? + 2.5 = 4 and if you take away 4 - 2.5 = 1.5 and that is what the question mark is
To make it it is -3 x ? = 1.5 and there you get -0.5
To make it it is -3 x ? = 1.5 and there you get -0.5