Your expression would be

because of the order of operations this expression is valid to the world problem
Step-by-step explanation:
a=2
b=-7
c=-15
-(-7)+-sq root (-7)²-4(2)(-15) / 2(2)
7 +- sq root 169 / 4
7+- 13 / 4
7+13 / 4, 7-13 / 4
x=5 x=-3/2
The answer is h= 2.9
steps:
-1.8 = h-4.7
+4.7 +4.7
2.9 = h
Answer:
0
Step-by-step explanation:
3x+2=2
or, 3x=2-2
or, x=0/3
:. x=0
0.4 is 4/10 in decimal form.