answersLogoWhite

0


Best Answer

Equations: 7x+4y = 9 and 2x+3y = 1

Multiply all terms in the 1st equation by 2 and all terms in the 2nd equation by 7

So: 14x+8y = 18 and 14x+21y = 7

Subtract the 1st equation from the 2nd equation: 13y = -11 => y = -11/13

By substituting y = -11/13 into any of the equations x = 23/13

Therefore the solutions are: x = 23/13 and y = -11/13

User Avatar

Wiki User

7y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What are the solutions to the simultaneous equations of 7x plus 4y equals 9 and 2x plus 3y equals 1 in step by step stages?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How do you find the solutions of the simultaneous equations of 2x plus 5y equals 16 and -5x-2y equals 2 showing work in step by step stages?

1 If: 2x+5y = 16 and -5x-2y = 2 2 Then: 2*(2x+5y =16) and 5*(-5x-2y = 2) is equvalent to the above equations 3 Thus: 4x+10y = 32 and -25x-10y = 10 4 Adding both equations: -21x = 42 or x = -2 5 Solutions by substitution: x = -2 and y = 4


What are the solutions to the simultaneous equations of 6.6x plus 16.5y equals 52.8 and -16.5x -6.6y equals 6.6 showing key stages of work?

Eqn (A): => 2x + 5y = 16 Eqn (B): => 5x + 2y = -2 5*Eqn (A) - 2*Eqn (B): 21y = 84 => y = 4 Substituting for y in Eqn (a): x = -2


What is Waterfall Solutions?

Waterfall is one of the software development life cycle model. Waterfall model has five stages.


What are three stages of defining and solving a public policy issue?

identify the problem, determine options, implement solutions


What is the solution to the equations y equals 3x plus 4 and y equals 2 -7x showing key stages of work?

If: y = 3x+4 and y = 2-7x Then: 3x+4 = 2-7x So: 3x+7x = 2-4 => 10x = -2 => x = -1/5 By substitution: y = 17/5 Solution: x = -1/5 and y = 17/5


What are the 6 stages of the decision-making model?

identifying a problem thinking of possible solutions deciding on the best solution communicating implement evaluate (:


What is the perpendicular distance from the coordinates of 7 and 5 to the straight line of 3x plus 4y -16 equals 0 showing key stages of work?

Points: (7, 5) Equation: 3x+4y-16 = 0 Perpendicular equation: 4x-3y-13 = 0 Equations intersect at: (4, 1) Length of perpendicular line: 5


What are the stages in the route to enquiry?

The stages in the route to enquiry typically include awareness (identifying a problem or need), consideration (researching potential solutions), evaluation (comparing options), decision (making a choice), and post-purchase evaluation (reflecting on the experience).


What is the perpendicular distance from the point 7 5 to the staight line equation 3x plus 4y -16 equals 0 showing key stages of work?

Equation: 3x+4y-16 = 0 Perpendicular equation: 4x-3y-13 = 0 Both equations intersect at: (4, 1) Perpendicular distance: square root of (7-4)2+(5-1)2 = 5


What is the perpendicular distance from the point 4 -2 to the line 2x -y -5 equals 0 showing key stages of work?

Points: (4, -2) Equation: 2x-y-5 = 0 Perpendicular equation: x+2y = 0 Equations intersect at: (2, -1) Perpendicular distance is the square root of: (2-4)2+(-1--2)2 = 5 Distance = square root of 5


How many stages does a cockroach?

It has 3 stages. The stages are : Egg, Nymph and the Adult.


Why are three stages needed for development of fruit fly larvae?

The three stages that are needed for development of fruit fly larvae are molting stages, pupil stages, and metamorphosis stages.