-2
115
x=10 y=5 2x10=20 5x5=25 20 + 25 =45
x = 45
X-45=12 ________ +45 +45 ________ x= 57
1.8
There are infinitely many solutions as x + y = 45 defines a straight line. Pick a value for x and you can calculate the y value so that x + y = 45. It can be rearranged to get y in terms of x: x + y = 45 → -x + x + y = -x + 45 → y = -x + 45 It is a line with slope -1 and intercept 45. You can substitute any value for x and the corresponding y value will be found. eg x = 1 → y = -1 + 45 = 44 x = 25 → y = -25 + 25 = 20
(25 x 1.8) + 32 = 45 + 32 = 77F
it equals 25
It depends on what x and y are.
the answer is 2.6 because: 45 x X = 126 so you bring the 45 to the other side of equals, then it becomes a divide. X=126 divided by 45 soo.. X=2.8
F = (C x 1.8) + 32F = (25 x 1.8) + 32F = 45 + 32Fahrenheit = 77°
45 x 1,943.42222 = 87,454