Answer:
x= -0.36
firstly you need to open the brackets
-3(3x +6) + 2=9
-9x -18 + 2=9
secondly join the like terms together
-9x = 9 + 18 - 2
-9x = 25
thirdly you divide both sides by 25
-9x ÷ 25 = -0.36
18
Step-by-step explanation:
Replace x with 7:
y = 115 + 10(7)
y = 115 + 70
12 miles squared
You get (c-4)d = cd - 4d.
You have to "distribute" the d to the c and the 4.
