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PilotLPTM [1.2K]

4 years ago

9

R + 4.6 + 9 = 3r - 11.7 - 7r

1 answer:

Tom [10]4 years ago

3 0

R+4.6+9=3r-11.7-7r

combine all like terms on one side of the equal sign

r+4.6-4.6+9=3r-11.7-7r-4.6
r+9-9=3r-11.7-7r-4.6-9
r-3r=3r-3r-11.7-7r-4.6-9
r-3r+7r=-11.7-4.6-9-7r+7r
r-3r+7r=-11.7-4.6-9

add them all into one term on each:

5r=-25.3

divide by 5 on both sides:

r= -5.06

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Step-by-step explanation:

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