Answer:
R=-12
Step-by-step explanation:
6(1 + 3R) = 2(10R - 9) -4R
Distribute 6 through the parentheses
6+18R=2(10R-9)-4R
Distribute 2 through the parentheses
6+18R=20R-18-4R
Collect like terms
6+18R=16R-18
Move the variable to the left-hand side and change its sign
6+18R-16R=-18
Move the constant to the right-hand side and change its sign
18R-16R=-18-6
Collect like terms
2R=-18-6
Calculate the difference
2R=-24
Divide both sides of the equation by 2
R=-12
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Answer:
D. is correct!
Step-by-step explanation:
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^ just an example
brainliest?
Answer:
Step-by-step explanation:
do you know the answer
Answer:
180 miles
Step-by-step explanation:
625 - 175= 450
450 divided by 2.50 = 180
