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Substitute the values of x and y in 10x + 7y, thus:
10x + 7y = 10*9 + 7*6 = 90 + 42 = 132
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How do you solve 10x-7y equals -6 5x plus 7y equals 81 in an order pair?
10x-7y = -6 5x+7y = 81 Add both equations to eliminate y: 15x = 75 Divide both sides by 15 to find the value of x: x = 5 Substitute the value of x into the original equations to find the value of y: Therefore: x = 5 and y = 8
2x plus 6 equals -6 5x plus 7y equals 1?
if: 2x + 6 = -6 then: 2x = -12 x = -6 if: 5x + 7y = 1 then: 5(-6) + 7y = 1 7y = 31 y = 31/7
What is x plus 13x plus 10x equals 50-6?
x + 13x + 10x = 50 - 6
6-x plus 12 equals 10x plus 7 how much x equals?
6-x+12 = 10x+7 6+12-7 = 10x+x 11 = 11x x = 1
What is the variable in this equation 7y plus 10 equals -6 plus 14?
y is the variable
How do you solve 10x-7y equals -6 5x plus 7y equals 81 in an order pair?
10x-7y = -6 5x+7y = 81 Add both equations to eliminate y: 15x = 75 Divide both sides by 15 to find the value of x: x = 5 Substitute the value of x into the original equations to find the value of y: Therefore: x = 5 and y = 8
2x plus 6 equals -6 5x plus 7y equals 1?
if: 2x + 6 = -6 then: 2x = -12 x = -6 if: 5x + 7y = 1 then: 5(-6) + 7y = 1 7y = 31 y = 31/7
5y plus 8 equals 7y-6?
5y+8 = 7y-6 5y-7y = -6-8 -2y = -14 y = 7
What is x plus 13x plus 10x equals 50-6?
x + 13x + 10x = 50 - 6
6-x plus 12 equals 10x plus 7 how much x equals?
6-x+12 = 10x+7 6+12-7 = 10x+x 11 = 11x x = 1
What is the variable in this equation 7y plus 10 equals -6 plus 14?
y is the variable
What is 3x plus 7y if x equals 6 y equals 4?
3x + 7y = 3*x + 7*y = 3*6 + 7*4 = 18 + 28 = 46
What does x equal in 10x plus 2 equals 62?
X equals 6
-10x-6 plus 4x equals -4x plus 8?
-6x-6 -or- -6(x+1)
If T equals 3x plus 7y what is T when x equals 4 and y equals 6?
T = 3x + 7y; x = 4; y = 6T = 3x + 7y (substitute 4 for x, and 6 for y)T = 3(4) + 7(6) = 12 + 42 = 54
Which equation has the steepest graph y equals 7x plus 3 y equals -2x plus 6 y equals -10x - 4 y equals 8x - 1?
y=-10x-4
Are the graphs of 2x plus 7y equals 6 and 7y equals 2x plus 6 parallel?
Yes, they are. If you solve 2x + 7y = 6 for y, you get y = (-2x + 6) / 7. If you solve 7y + 2x + 6 = 0 for y, you get y = (-2x - 6) / 7. As you can see, both equations have the same slope. Therefore they are parallel. You can punch those equations into a graphing calculator and visually verify that they are indeed parallel.
