you just equal that equation to 0, then you solve for x 5x-8=0 5x=8 x=8/5
That depends on what the value of x is.
x-5x=4.5 -4x=4.5 x=-1.125
3 + 5x = 38 -> 5x = 35 -> x = 7
When x equals 8, the value of 5x would be 5 times 8, which is 40.
you just equal that equation to 0, then you solve for x 5x-8=0 5x=8 x=8/5
y = 5x is the equation of a line. Subtitute any value for "x", then calculate the corresponding value of "y", which in this case is simply the value of "x" multipled by 5.
That depends on what the value of x is.
12
3x = 7-5x 8x=7 x = 7/8 x = 0.875
x-5x=4.5 -4x=4.5 x=-1.125
5x-2x=9
5x = 5 times 9, 2y = 2 times 4 so 45 - 8 ie 37
3 + 5x = 38 -> 5x = 35 -> x = 7
When x equals 8, the value of 5x would be 5 times 8, which is 40.
It can be simplified to -4x
x = 31