0
Still curious? Ask our experts.
Chat with our AI personalities
RossEvery question is just a happy little opportunity.
Chat with Ross
BlakeAs your older brother, I've been where you are—maybe not exactly, but close enough.
Chat with Blake
LaoThe path is yours to walk; I am only here to hold up a mirror.
Chat with LaoAdd your answer:
Earn +20 ptsQ: If x equals 3 and y equals 9 then 7x add 4y equals?
Write your answer...
Submit
Still have questions?
Continue Learning about Algebra
What are the solutions to the equations 7x-4y equals 13 and 2x-5y equals -4?
It works out that the solutions are: x = 3 and y = 2
Simplify the algebraic expression 7x squared minus 4y plus 3x squared plus 5y plus 2 and evaluate it for x equals 3 and y equals 9?
7(3y-2)-(-4y+9)
5x-3y equals 23 7x-4y equals 33?
5x -3y = 23 7x - 4y = 33 This is simultanreous equations. Arbitrarily decide which letter to eliminate. In this case 'y' To do this multiply the top eq'n by '-4' and the bottom by '3' Hence -20x + 12y = -92 21x - 12y = 99 Add the two eq'ns. This will eliminate 'y' x = 7 Substitute into either eq'n for 'y' 49 - 4y = 33 -4y = - 16 y = 4 Hence (x,y) = ( 7,4)
8 x-1 equals 7x plus 2 Answer?
8x-1 = 7x+2 Add 1 to both sides: 8x = 7x+3 Subtract 7x from both sides: 1x = 3 ie x = 3
What is the solution of 4y - 3 greater than 9?
y > 3 Treat the greater than sign [a bit] like an equals sign to solve: 4y - 3 > 9 ⇒ 4y > 12 [add 3 to each side] ⇒ y > 3 [divide each side by 4]
Trending Questions
Lucy had 72 which is nine times as much money as Xavier had. How much money did Xavier have Select the correct solution method below representing Xavier's money with x.?
What is division property of equality?
A length measured in units equal to 3 feet?
What is the square root of 1.9812 meters?
What number must you add to complete the square x2 plus 12x equals 16?
Which equation represents a graph with a vertex at (1,-6?
What are synonyms for might?
Could the value of the variable be greater than 12.50?
What is the value of y in the equation a y0?
What is -2 C equal to in Fahrenheit?
Why is the number 1024 the perfect tenth power?
What is the plural form of almond?
What are three ways that Pythagorean theorem can be used for?
What is the analogy of aria?
What is the width of a rectangular prism that is 9 yards long and 8 yards high with a volume of 144?
Type the equation that represents the value of 5 nickels and x dimes?
How can you find the slope of an equation?
What is the answer to pre algebra with pizzazz pg 121?
How do you use colums in a sentence?
Solve -3 parentheses x plus 1 close parentheses equals 2 parentheses x minus 8 close parentheses plus 3?
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.