-8 + 10x = 18 10x = 18+8 10x = 26 x = 26/10 x = 2.6
First collect like terms in the second equation: 5x - 18 = 4y - 3y ie y = 5x - 18 Substitute this for the term in y in the first equation, getting 3x + 2(5x - 18) = 16 ie 3x + 10x - 36 = 16 ie 13x = 16 + 36 so x = 4 and y = 5 x 4 - 18 ie 2.
y= -25
16
There is no such thing as what times what equals 18.There is only 1,2,9,16,25,36,49,64,81,100,121,144 as square numbers.
-8 + 10x = 18 10x = 18+8 10x = 26 x = 26/10 x = 2.6
(3,21)
10x - 18 = 5x + 2 Add -5x + 18 to both sides of the equation, to get: 5x = 20, from which x = 4.
x2 + 10x = 18 x2 + 2(5)x - 18 = 0 x2 + 2(5)x + 25 = 18 + 25 (x + 5) 2 = 43 x + 5 = 430.5 x=6.56(3sf)-5
Subtracting gives: 10x = 80 so x = 8 and y = 5
10x + 6 = 12x - 18 Subtract 10x from both sides: 6 = 2x - 18 Add 18 to both sides: 24 = 2x Divide both sides by 2: 12 = x Therefore, x = 12
72 but there is such a thing as a CALCULATOR
2+14=16
1)set 2-8x equal to 10x+202) like term - add or subtract3)after u combined like terms, move (X) to either side4) now divide, the left over, {x divide the whole number}EX:2-8x=10x+20-20 - -20-18-8x= 10x+8x +8x-18=18xx=-1
U = 4 x 18 U = 72
How do you add 2x plus 3y equals 18 in 5x-y equals 11
18 square feet = 1.67 square meters.