Answer:
4.3
Step-by-step explanation:
what you wanna do is add the 1.5 and the -2.8 together, then devide it by 0.4 four, and thats what X equals.
0.4x - 2.8 = 1.5
Add 2.8 to both sides
0.4x - 2.8 +2.8 = 1.5 + 2.8
0.4x = 4.3
Divide both sides by 0.4
0.4x/0.4=4.3/0.4
x = 10.75
