Solve the simultaneous equations7x−3y= −4,3x−2y= −1.
Question
Solve the simultaneous equations7x−3y= −4,3x−2y= −1.
Solution
Sure, let's solve these equations step by step.
Step 1: Write down the equations
7x - 3y = -4 3x - 2y = -1
Step 2: Multiply the equations by necessary multiples such that the coefficients of y's in both equations will cancel each other out when subtracted. In this case, multiply the first equation by 2 and the second equation by 3.
14x - 6y = -8 9x - 6y = -3
Step 3: Subtract the second equation from the first
(14x - 9x) - (6y - 6y) = -8 - (-3) 5x = -5
Step 4: Solve for x
x = -5 / 5 x = -1
Step 5: Substitute x = -1 into the second equation
3(-1) - 2y = -1 -3 - 2y = -1 -2y = -1 + 3 -2y = 2
Step 6: Solve for y
y = 2 / -2 y = -1
So, the solution to the system of equations is x = -1, y = -1.
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