jmcdevitt
jmcdevitt
15-09-2021
Mathematics
contestada
solve for y if x - 4y = 70 and if x = y + 1
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novastar9
novastar9
15-09-2021
Substitute x = y + 1 into x - 4y = 70, which gives you y + 1 - 4y = 70.
Then, simplify to get 1 - 3y = 70.
Move the 1 over to get -3y = 69, and divide both sides by -3 to get y = -23.
Substitute y = -23 into x = y + 1 to get x = -22.
Hope it helped!
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