Question

Pls explain addition and subtraction, linear equations of ALGEBRA.

Answer 1

Answer:

In the addition/subtraction method, the two equations in the system are added or subtracted to create a new equation with only one variable. ... Add the equations to produce a single equation with one variable. Solve for the variable. Substitute the variable back into one of the equations and solve for the other variable.

Answer 2

Thanks for your question...

Your required answer :

• Let the equation be :
• 3x + 4y = 9
• 2x - 5y = 6

For addition :

Add LHS and RHS

• 3x + 4y + 2x - 5y = 9 + 6
• 5x - y = 15

For Subtraction :

Subtract LHS and RHS

• 3x + 4y - ( 2x - 5y ) = 9 - 6
• 3x + 4y - 2x + 5y = 3
• x + 9y = 3

Hope it helps you