0
4x-5y = -8
4x+40 = y => y = 4x+40
Substitute the value of y into the top equation:
4x-5(4x+40) = -8
4x-20x-200 = -8
4x-20x = 200-8
-16x = 192
Divide both sides by -16 to find the value of x:
x = -12
Substitute the value of x into the original equations to find the value of y:
Therefore: x = -12 and y = -8
Still curious? Ask our experts.
Chat with our AI personalities
JordanLooking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
RossEvery question is just a happy little opportunity.
Chat with Ross
CoachSuccess isn't just about winning—it's about vision, patience, and playing the long game.
Chat with CoachAdd your answer:
Earn +20 ptsQ: Solve by the substitution method 4x-5y equals -8 4x plus 40 equals y?
Write your answer...
Submit
Still have questions?
Continue Learning about Other Math
Trending Questions
How many greyhoud bus's fit in a c-130?
What does 30 degrees represent?
What is 9x10-4 written in standard form?
How many millimetres is 9ft?
What fraction is equal to negative 1.625?
Which is another word that means vertex?
How many combinations of dimes nickels and pennies equals 19 cents?
Scientific notation is a good way to write what kinds of numbers?
What is 84 times 67?
How do you convert seconds into hundredths of a second?
Twenty is to four as what is to six?
How is maths related with physics?
How much is 9 quarters?
Which formula would you use to find the volume of a triangular prism?
What is five and six-thousandths as a decimal number?
How do you say 8 in fraction?
What is 1832.2243 nearest hundred?
What fraction has the same value as the decimal number 0.65?
Would you measure a door in yards or feet?
What numbers multiply to equal 200?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.