How do you solve the simultaneous equations #3x+7y=26# and #4x+5y=13#?
I would multiply the first equation by
Substitute back this value into the first equation:
One way is to use the method of elimination.
Step 1. Enter the equations.
Step 2. Prepare the equations.
Multiply every term in each equation by a number so that equal terms can be eliminated.
Multiply Equation (1) by
Step 3. Subtract Equation (4) from Equation (3).
#y = 65/13#
Step 4. Substitute Equation (6) in Equation (2).
Check: Substitute the values of