How do you solve the simultaneous equations #4x + 3y = 9# and #3x - y = 10#?
1 Answer
Aug 3, 2015
Explanation:
One way is to use the method of elimination.
Step 1. Enter the equations.
[1]
[2]
Step 2. Prepare the equations.
Multiply each equation by numbers that give one variable the same coefficient in each equation.
Multiply Equation 2 by
[3]
Step 2. Add Equations 1 and 3.
[3]
Step 3. Substitute Equation 3 in Equation 2.
Solution:
Check: Substitute the values of
It checks!