Multiply the bottom equation by -1
9x + 5 = 5x + 179x + 5 - 5x = 179x - 5x = 4x5-4x=1717-5=1212 divided by 4 = 3x=3
5x plus 3 does equal 3 plus 5x; commutative law.
If: x = 7 Then: y = (2*7)+3 = 17 And: 5x+y = (5*7)+17 = 52
When 5x+3 = 17 then x = 2.8 Therefore when 8x-y = 3 then x = 2.8 and y = 19.4
5x + 3 = -12 5x =-12-3 =-15 x = -3
5x - 4x = 13 - 3 ie x = 10
5x+3 = 3x+11 5x-3x = 11-3 2x = 8 x = 4
3 + 5x = 38 -> 5x = 35 -> x = 7
-6x+3 = -7-5x 7+3 = 6x-5x 10=x
0. 6x + 3 = 5x + 141. 6x = 5x + 11 [subtracting 3]2. x = 11 [subtracting 5x]
5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3
8x + 5x + 2x + 4x = 114 19x = 114 x = 6 then 5x + 3 = 5*6 + 3 = 33
5x+8 = 10x+35x-10x = 3-8-5x = -5x = 1 and by substituting the value of x into the equations y = 13
5x + 3 = 18 Subtract 3 from both sides: 5x = 15 Divide by 5: x = 3.
4 + 5x = 1 5x = 1 - 4 5x = -3 x = -3/5 x = -0.6
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.
Then x = 6 Therefore; 5x + 3 = 33 First you have to solve the value of X: 8X + 5X + 2X +4X = 114; OR 19x = 114. When you divide both sides of the equation by 19 to solve for X, you find that X = 6. Ergo, 5X + 3 = 30 + 3 = 33; hence, 5X + 3 = 33.
If: x+9+5x = 21+2x Then: x = 3
30 + 5x = 15 + 10x 30 = 15 + 5x 15 = 5x x = 3
If: 10x+7 = 5x+22 Then: 10x-5x = 22-7 And: 5x = 15 So: x = 3
5x-3 = 11+12x 5x-12x = 11+3 -7x = 14 x = -2
-4x + 3 = -5x + 3add 5x to each sidex + 3 = 3subtract three from each sidex = 0
5x+3+x=24 6x+3=24 6x=21 x=3.5
20x+7=5x+10 15x=3 3/15=.2 x=.2