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When solving for two equations with two variables, take one equation (it doesn't matter which one) and solve for one of the variables (it doesn't matter which one).
4x + 7y = 47
7y = 47 - 4x
y = 47/7 - (4/7)x
Now plug that value for the variable you solved for into the other equation
5x - 4y = -5
5x - 4(47/7 - (4/7)x) = -5
5x -188/7 + (16/7)x = -5
(51/7)x = 153/7
51x = 153
x = 3
Now plug that value into either equation to solve for the other variable.
4x + 7y = 47
4(3) + 7y = 47
12 + 7y = 47
7y = 35
y = 5
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How do you solve 2y equals 4x plus 4?
2y = 4x + 4y = 2x + 2
What is the system of equations and enter the solution as an ordered pair 4x 7y equals 47 5x-4y equals -5?
Do you mean: 4x+7y = 47 and 5x-4y = -5 Then the solutions to the simultaneous equations are: x = 3 and y = 5
How do you solve 4x - 4y plus 7 equals 15?
4x - 4y + 7 = 15to get it into y-intercept form do this...4x -4x - 4y + 7 - 7 = 15 - 7 - 4x-4y = 8 - 4x-4y / -4 = (8 / -4) + (-4x / -4)y = x + 2you did not give any values to plug in so this is as best an answer i can give
What is the solution of this system 3x plus 4y equals 5 x-4y equals 7?
Add the two equations and get 4x = 12 so x = 3 and y = -1
What is the answer 3x equals 4y-x?
3x=4y-x 4x=4y x=y
What is the equation for -4x plus 4y equals plus 1?
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You write 4x plus 4y equals 40?
How do you write 4x plus 4y equals 40 or how do you solve it? You would write it 4x+4y=40 you would solve it for y by subtracting 4x from both sides 4y=40-4x then divide all of that by 4y=40-4x/4 that's if you were graphing i have no idea what you're asking hope that helps if it's not too late.
What is the ordered pairs for the equations 5x plus 4y equals 73 and -4x plus 4y equals -8?
(9,7) by Kayla hamilton
What is the substitution of4x plus 4y equals 16 and y equals 5?
4x+4y=16 y=5 4x+ 20=16 4x=-4 x=-1
How do you solve 2y equals 4x plus 4?
2y = 4x + 4y = 2x + 2
What is this equation in standard form 4y equals -6 plus 4x?
In standard form it is 4x - 4y = 6 or 2x - 2y = 3
What is the system of equations and enter the solution as an ordered pair 4x 7y equals 47 5x-4y equals -5?
Do you mean: 4x+7y = 47 and 5x-4y = -5 Then the solutions to the simultaneous equations are: x = 3 and y = 5
Simplify 4x plus 7y plus 2x-3y equals?
6x plus 4y
How do you solve 4x - 4y plus 7 equals 15?
4x - 4y + 7 = 15to get it into y-intercept form do this...4x -4x - 4y + 7 - 7 = 15 - 7 - 4x-4y = 8 - 4x-4y / -4 = (8 / -4) + (-4x / -4)y = x + 2you did not give any values to plug in so this is as best an answer i can give
What is the ordered pair of 4x-4y plus 7 equals 15 8y equals 2x plus 14?
(5,3)
How do you rewrite -3X plus 4Y equals 11?
4y = 3x+11 or as y = 3/4x+11/4
What is 10x plus 3y minus 4x minus 7y equals?
6x - 4y
