ANYTIME. a number is next to a variable it means that number has to be multiplied by the variable. Try writing it out as 30 times x in the equation. Its quite simple just refere to the Order of operations and PEMDAS search around if you are not sure on how to find the value of a variable. Its actually quite simple. Since I infer you are probably doing homework I don't want to go ahead and give you the value so this is the most i can help you.
Given ef is the midsegment of isosceles trapezoid abcd bc equals 17x ef equals 22.5x plus 9 and ad equals 30x plus 12 find ad?
31x
x = 0.666666666666667 so 100 + (30x0.67) + (30x0.67) = around 180
56
3y plus 6x = 2
60x + 120x - 40x - 80x - 30x = 24030x = 240x = 240/3 = 80
-30x=6.3 x=-.21
Algebraically, with X = ' what. '30X = 180X = 180/30X = 6=====
Algebraically, with X = ' what. '30X = 180X = 180/30X = 6=====
Algebraically, with X = ' what. '30X = 180X = 180/30X = 6=====
That's 35 - 30x. The GCF of 35 and 30x is 5.
If: 850 = 0.30x Then: x = 850/0.30 = 2833.333 ... recurring