3x + 5x = 2x + 28x = 2x + 26x = 2x = (2/6) = 1/3
2x+3x = 5x
2x+3y=13 3x-y=3 x=2
3x+2 = 5x so 2x = 2 and hence x = 2/2 = 1
3x+5 = 2x+13 3x-2x = 13-5 x = 8
2x + 2 = 3x - 57 = x
-3x+2 = 2x-8 8+2 = 2x+3x 10 = 5x x = 2
3x - 2 = 2x + 4 3x - 2x = 4 + 2 x = 6
3x-2 = 2x+3 3x-2x = 3+2 x = 5
3x + 5x = 2x + 28x = 2x + 26x = 2x = (2/6) = 1/3
Y=2xx+y=3x+(2x)=33x=3x=1y=2x y=2*1y=2
2x+3 = 3x+5 2x-3x = 5-3 -x = 2 x = -2
3X+2=2X-5 -2 -2 __________ 3X= 2X-7 -2X -2X __________ X=-7 Check: 3(-7)+2=2(-7)-5 -19=-19 :)
3x+1+2x-2 = 64 3x+2x = 64-1+2 5x = 65 x = 13
LMN = LM + MN = 3x + (2x +2) = 5x + 2
3x-y = 3y3x = 4yy = 0.75x3x-0.75x = 2x+22.25x = 2x+20.25x = 2x = 8y = 6
3x - y = 3y = 2x + 2Put the value of y in the 1st equation:3x - y = 3 it will be -->3x - ( 2x + 2 ) = 33x - 2x - 2 = 3x - 2 = 3X = 5Put the value of X in the 2nd equation so as to find the value of Y :y = 2x + 2y = 2(5) + 2y = 10 + 2Y = 12