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The idea here is to add everything to the left side of both equations together, and everything on the right side. So, you get:

x + y + 8 - x = 8 + 7

After simplifying, in this case you eliminate one variable, which is the purpose of this method. After solving for this variable, you can replace its value in any of the original equations to get the other variable.

Q: Solve this equation using addition method x plus y equals 8 and -x plus 2y equals 7?

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x=1, y=1

x+y=5

The answer depends on the equation: there is no single method which can be used for all equations.

You solve the two equations simultaneously. There are several ways to do it; one method is to solve the first equation for "x", then replace that in the second equation. This will give you a value for "y". After solving for "y", replace that in any of the two original equations, and solve the remaining equation for "x".You solve the two equations simultaneously. There are several ways to do it; one method is to solve the first equation for "x", then replace that in the second equation. This will give you a value for "y". After solving for "y", replace that in any of the two original equations, and solve the remaining equation for "x".You solve the two equations simultaneously. There are several ways to do it; one method is to solve the first equation for "x", then replace that in the second equation. This will give you a value for "y". After solving for "y", replace that in any of the two original equations, and solve the remaining equation for "x".You solve the two equations simultaneously. There are several ways to do it; one method is to solve the first equation for "x", then replace that in the second equation. This will give you a value for "y". After solving for "y", replace that in any of the two original equations, and solve the remaining equation for "x".

a equals 5

Related questions

x=1, y=1

solve system equation using addition method 3x-y=9 2x+y=6

x+y=5

the answer

z=pq

The answer depends on the equation: there is no single method which can be used for all equations.

Addition and subtraction are inverse operations. So you can solve addition by subtracting.

Add the equations: 4a + 4a - 5b + 5b = 7 + 17 ie 8a = 24 a = 3, so b = 1

You solve the two equations simultaneously. There are several ways to do it; one method is to solve the first equation for "x", then replace that in the second equation. This will give you a value for "y". After solving for "y", replace that in any of the two original equations, and solve the remaining equation for "x".You solve the two equations simultaneously. There are several ways to do it; one method is to solve the first equation for "x", then replace that in the second equation. This will give you a value for "y". After solving for "y", replace that in any of the two original equations, and solve the remaining equation for "x".You solve the two equations simultaneously. There are several ways to do it; one method is to solve the first equation for "x", then replace that in the second equation. This will give you a value for "y". After solving for "y", replace that in any of the two original equations, and solve the remaining equation for "x".You solve the two equations simultaneously. There are several ways to do it; one method is to solve the first equation for "x", then replace that in the second equation. This will give you a value for "y". After solving for "y", replace that in any of the two original equations, and solve the remaining equation for "x".

It is not an equation if it does not have an equals sign. You could simplify it but not solve it.

a equals 5

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