Answer:
B. 5x+4
Step-by-step explanation:
Solving this is quite easy.
- Add 5x and 4 getting 5x+4
- Look at your bottom variables..since 7x and -7x are opposites they will cancel out! And same thing goes for y and -y.
<span>0.03x+20=0.07x+5 original equation
</span>0.03x+20-0.03x=0.07x+5-0.03x <span>subtract 0.03x from both sides to combine like terms
</span>20=0.04x+5
20-5=0.04x+5-5 subtract 5 from both sides
15 = 0.04x
15/0.04 = 0.04x/0.04 divide both sies by 0.04 to get x alone.
375 = x <-------WOOOOOO! theres the answer!
Answer:
n=42
Step-by-step explanation:
The first step is to open the brackets by multiplying the vale before the brackets to the values inside the brackets giving attention to the signs which gives:
3n-15-2n-16=11
Then we collect like terms together.
3n-2n-15-16=11
evaluating the above equation we get
n-31=11
n=11+31
=42
Answer:
Step-by-step explanation:
Formulas:
C = 24.50d + 15.99
C = 27.50d + 3.99