5X^2 = 500
divide both sides by 5
X^2 = 100
take square root both sides
X = (+/-) 10
check
5[(+/-) 10]^2 = 500
+/- 10^2 = 100
500 = 500
checks
5x + 2 = 22 5x = 22 - 2 5x = 20 5x/5 = 20/5 x=4
5x=10 5x/5=10/5 x=2
The question contains two equations:5x - 6y = 15 5x + y = 2 There are no inequalities in the question.
2
7
5x^(2) + 500 = 844.45 Subtract '500' from both sides. 5x^(2) = 344.45 Divide both sides by '5' x^(2) = 344.45 / 5 = 68.89 Square root both sides x = +/-sqrt(68.89) = +/- 8.3 (Ther answer)
4x-7=5x-2 x=-5
5x-5 = -3 5x = -3+5 5x = 2 x = 2/5
Here is the work for that problem: 5x+ 2=12 5x= 12-2 5x=10 x= 2
f(x)=5x+2
5x + 2 = 22 5x = 22 - 2 5x = 20 5x/5 = 20/5 x=4
5x=10 5x/5=10/5 x=2
The question contains two equations:5x - 6y = 15 5x + y = 2 There are no inequalities in the question.
2
7
This cannot be solved. It needs 2 equations to solve for 2 unknowns.
-10.