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5 votes
Solve the system of equations.

Solve the system of equations.-example-1
User Zmonteca
by
5.0k points

2 Answers

4 votes

Answer:

x=1

y=0.5

Explanation:

-4x+3y=-2

Add 4x to both sides

3y=-2+4x

y=x-1

Multiply both sides by 3

3y=3x-1

Combine equations

-2+4x=3x-1

Subtract 3x from both sides

x-2=-1

Add 2 both sides

x=1

-4x+3y=-2

Subtract 3y from both sides

-4x=-2-3y

y=x-1

Add 1 to both sides

x=y+1

Multiply both sides by -4

-4x=y-4

Combine equations

y-4=-2-3y

Add 3y to both sides

4y-4=-2

Add 4 to both sides

4y=2

Divide both sides by 4

y=0.5

I hope it's right because this was very confusing.

User Kuppuram
by
5.1k points
3 votes

Explanation:

Step 1: Substitute y from the second equation into the first


-4x + 3y = -2


-4x + 3(x - 1) = -2


-4x + 3x - 3 = -2

Step 2: Solve for x


(-4x + 3x) - 3 = -2


-x - 3 + 3 = -2 + 3


-x/-1 = 1/-1


x = -1

Step 3: Plug in x into the second equation to get y


y = x - 1


y = (-1) - 1


y = -2

Answer:
x = 1, y= -2

User Seggy
by
5.0k points
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