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4.2x -1.4y = 2.1 solve for y
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4 votes
4.2x -1.4y = 2.1 solve for y

User Sergey Shambir
by
6.2k points

3 Answers

3 votes
4.2x - 1.4y= 2.1....for y
-1.4y = -4.2x + 2.1
y = (-4.2/-1.4)x - 2.1/1.4
y = 3x - 1.5
User Greendrake
by
7.1k points
5 votes

we have


4.2x-1.4y=2.1

Solve for y--------> clear the variable y


4.2x-1.4y=2.1

Subtract from both sides
4.2x


4.2x-1.4y-4.2x=2.1-4.2x


-1.4y=2.1-4.2x

Divide both sides by
-1.4


y=(2.1-4.2x)/(-1.4)


y=-(2.1)/(1.4) +(4.2x)/(1.4)\\ \\y= -1.5+3x\\ \\y=3x-1.5

therefore

the answer is


y=3x-1.5

User Isaac Weathers
by
6.9k points
4 votes

we have


4.2x-1.4y=2.1

Solve for y--------> clear the variable y


4.2x-1.4y=2.1

Subtract from both sides
4.2x


4.2x-1.4y-4.2x=2.1-4.2x


-1.4y=2.1-4.2x

Divide both sides by
-1.4


y=(2.1-4.2x)/(-1.4)


y=-(2.1)/(1.4) +(4.2x)/(1.4)\\ \\y= -1.5+3x\\ \\y=3x-1.5

therefore

the answer is


y=3x-1.5

User Anshulkatta
by
6.7k points
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