6 - y + 5y - 6y = 0 6 = y -5y + 6y 6 = -4y + 6y 6 = 2y 6/2 = y 3 = y
5y - 4 + 3y = 12 Combine like terms: 8y - 4 = 12 Add 4 to both sides: 8y = 16 Divide both sides by 8: y = 2
Solving for y: 5y = 9 + 2y 5y - 2y = 9 3y = 9 y = 9/3 = 3
2y+5y=10 7y=10 y=10/7
Because of the limitations of the question software, it was not possible to determine what the original equation was supposed to be, so we assumed it is 3x + 5y = 7. It could have just as easily been 3x - 5y = 7, or even 3x/5y = 7.So, let's solve them all for x.3x + 5y = 73x = 7 - 5yx = (7 - 5y)/3How about 3x - 5y = 7?3x - 5y = 73x = 7 + 5yx = (7 + 5y)/3And 3x/5y = 7?3x/5y = 73x = 35yx = 35y/3 Solving for y The above equations wrote the equation so that x is a function of y, not the other way around. Here's how to rewrite the equation so that y is a function of x: 3x + 5y = 7 5y = -3x + 7 y = (-3x + 7)/5
Simplifying 5y + -1 = y + 9 Reorder the terms: -1 + 5y = y + 9 Reorder the terms: -1 + 5y = 9 + y Solving -1 + 5y = 9 + y Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-1y' to each side of the equation. -1 + 5y + -1y = 9 + y + -1y Combine like terms: 5y + -1y = 4y -1 + 4y = 9 + y + -1y Combine like terms: y + -1y = 0 -1 + 4y = 9 + 0 -1 + 4y = 9 Add '1' to each side of the equation. -1 + 1 + 4y = 9 + 1 Combine like terms: -1 + 1 = 0 0 + 4y = 9 + 1 4y = 9 + 1 Combine like terms: 9 + 1 = 10 4y = 10 Divide each side by '4'. y = 2.5 Simplifying y = 2.5
-3
x + 5y = 0 so x = -5y or y = -x/5 You can express x in terms of y or y in terms of x but it is not possible to solve a single linear equation in two variables.
2x+5y-7x+2xy combine like terms 5y-5x+2xy that's simplified because there are only 3 terms (x, y, and xy) you cannot combine x and y unless it's being multiplied
To solve for two unknowns (x and y) you need two independent equations. All that you can do with the above is to express x in terms of y, as follows: 3X + 5Y = 7 => 3X = 7 - 5Y or X = (7 - 5Y)/3 or you can express y in terms of x: Y = (7 - 3X)/5
y/5 = y/6+9 Multiply all terms by 30 to eliminate the fractions 6y = 5y+ 270 Subtract 5y from both sides 6y-5y = 270 y = 270
5y - y = 4y
2y - 7 + 5y = 0 Collecting like terms together, 7y - 7 = 0 or 7y = 7 So that y = 1
5y - 65xy '5' is a common factor both numbers. Hence 'take it out'. 5(y - 13xy) 'y' is a common factor to both terms, so take it out too!!!! 5y(1 - 13x) Done Factored!!!!!
y+5y
4x + 5y = -8 is an equation with two variables. While you can solve for y = something, you won't come up with a single number. For example, 4x + 5y = -8 5y = -4x - 8 y = -4x/5 - 8/5. And you can do the same for x = something in terms of y.
Well, honey, 5y is equal to 5 times y. It's as simple as that. So if someone tells you 5y, just remember they're talking about 5 times whatever the heck y represents. Now go on and show off your math skills!