you need to find out what can you multiply by 5 minus 2 will equal 13.
so x=3
5x2 = 3 then x2 = 3/5 so that x = sqrt(3/5) = ± 0.7746
1) 5x2-55=90 +55 +55 2) 10x=145 /10 /10 x=14.5
If 5x plus 3y equals 13, the x equals 2 and y equals 1. This is because 5x2=10 and 3x1=3, and 10+3=13.
-5x2 = -75 x2 = 25 x = ±sqrt( 25 ) x = ±___
X= (3/5 , -2)
5x2 = 3 then x2 = 3/5 so that x = sqrt(3/5) = ± 0.7746
1) 5x2-55=90 +55 +55 2) 10x=145 /10 /10 x=14.5
If 5x plus 3y equals 13, the x equals 2 and y equals 1. This is because 5x2=10 and 3x1=3, and 10+3=13.
-5x2 = -75 x2 = 25 x = ±sqrt( 25 ) x = ±___
X= (3/5 , -2)
5x2=8x Divide with x on both sides5x= 8 Solve xx=8/5
5x2-8x-4
x2 • (5x2 + x + 8)
X +13 equals 22, X equals nine
5x2-2x = 0 x(5x-2) = 0 Therefore: x = 0 or x = 2/5
(5x + 13)(x - 3) so x = either -13/5 (ie -2.6) or 3.
5x2=10...take 5 two times..5+5=10