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Where is y in the first equation, you put its equivalent (=) -3x + 11

The first equation is then transformed into: 3x + 2*(-3x + 11) = 7.

Then you get: 3x + (-6x) + 2*11 = 7 <=> -3x + 22 = 7 <=> 22 - 7 = 3x <=> 3x = 15 <=> x = 15/3 <=> x = 5. Then you substitute the x in the second equation by its equivalent so,

(x = 5)

y = -3*x + 11 <=> y = -3*5 + 11 <=> y = -15 + 11 <=> y = -4.

x = 5. y = -4.

Q: How to Solve the system using substitution 3x plus 2y equals 7 y equals negative 3x plus 11?

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You'd need another equation to sub in

elimination, substitution and graphing

You cant solve it unless it is an equation. To be an equation it must have an equals sign.

x+y=5

Solve this system of equation using substitution 2x plus 6y equals 24 and 3x-2x equals 24 ?Improved Answer:2x+6y = 243x-2x = 24 => x =24Substitute the value of x into the top equation to find the value of y:48+6y = 246y = 24-486y = -24y = -4So: x = 24 and y = -4

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(2,3)

You'd need another equation to sub in

elimination, substitution and graphing

True. To solve a three variable system of equations you can use a combination of the elimination and substitution methods.

Use the substitution method to solve the system of equations. Enter your answer as an ordered pair.y = 2x + 5 x = 1

You cant solve it unless it is an equation. To be an equation it must have an equals sign.

x+y=5

Solve this system of equation using substitution 2x plus 6y equals 24 and 3x-2x equals 24 ?Improved Answer:2x+6y = 243x-2x = 24 => x =24Substitute the value of x into the top equation to find the value of y:48+6y = 246y = 24-486y = -24y = -4So: x = 24 and y = -4

You use substitution when you can solve for one variable in terms of the others. By substituting, you remove one variable from the equation, which can then be solved. Once you solve for one variable, you can use substitution to find the other.

By elimination: x = 3 and y = 0

In that instance, it means that the lines never touch.

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