x = 6y = 89x + 10y = 9(6) + 10(8) = 54 + 80 = 134
y= 3/6 which reduces to 1/2
18 + 70 ie 87
15y+14=2(5y+6) 15y+14=10y+12 15y+14-14=10y+12-14 15y=10y-2 15y-10y=10y-2-10y 5y=-2 y=-2/5
10y + 8y = 18y = 15 y = 15/18 y = 5/6 = 0.833333.....
10y= 6y+5+3y 10y=6+9y y=6
x = 6y = 89x + 10y = 9(6) + 10(8) = 54 + 80 = 134
y= 3/6 which reduces to 1/2
18 + 70 ie 87
15y+14=2(5y+6) 15y+14=10y+12 15y+14-14=10y+12-14 15y=10y-2 15y-10y=10y-2-10y 5y=-2 y=-2/5
10y + 8y = 18y = 15 y = 15/18 y = 5/6 = 0.833333.....
You have, y = 6 + log x anti log of it, 10y = (106) x
-6 - 10y = -10 Add 6 to both sides: -10y = -4 Divide both sides by -4: y = -4/-10 = 4/10 = 0.4 Check by putting the value back into the equation: -6 - (10 x 0.4) = -6 -4 = -10
If a + b = 6, what is the value of 3a + 3b?
6y-5=8+10y 6y-10y=8+5 -4y=13 y=-3.,25 because: 6*3.25-5=-24,5 and 8+10*3.25=-24,5 true
it equals 15
It is 1