x - 2x + 10 + 4x = 70 Combine like terms: 3x + 10 = 70 Subtract 10 from both sides: 3x = 60 Divided both sides by 3: x = 20
-2 -3x = 10 Add 2 to both sides: - 3x = 12 Divide both sides by -3: x = -4
3x+8 = 5x+10 Take 3x away from both sides: 8 = 2x + 10 Take 10 away from both sides: -2 = 2x Divide both sides by 2: -1 = x
1/2*(-3x) = 5 Multiply both sides by 2: -3x = 10 Divide both sides by -3: x = 10/(-3) = -31/3
3x+5 = 4x-10 In algebra, what you do to one side you do the other Now you add 10 to both sides 3x+5 + 10 = 4x-10+10 3x +15 = 4x now subtract 3x from both sides 3x-3x +15 = 4x-3x 15 = x
3x = 5x - 10 Subtract both sides by 5x 3x - 5x = 5x - 10 - 5x Simplify - 2x = - 10 Divided both sides by -2 to isolate x - 2x / - 2 = - 10 / - 2 Simplify x = 5 Plug x into the original equation. 3(5) = 5(5) - 10 = ? Simplify 15 = 25 - 10 = ? Simplify 15 = 15 = ? Therefore 3x = 5x - 10 = 15
-10 - 3x = 17 Add ten to both sides. -3x = 27 Divide both sides by -3 x = -9 Check it. -9 - (-27) = 17 It checks.
3x + 5 = -2x - 10 Add 2x to both sides: 5x + 5 = -10 Subtract 5 from both sides: 5x = - 15 Divide both sides by 5: x = -3
7x-40 = -3x Add 40 and add 3x to both sides:- 7x-40+40+3x = 3x-3x+40 10x = 40 Divide both sides by 10:- x = 4
Do you mean 3x = 45 then if so divided both sides by 3 to find the value of x which is 15
First you subtract 3x from both sides and get -7=2x+3. Then subtract 3 from both sides and get -10=2x. Then divide both sides by 2 and x=-5.
3x - 7 + 4x = 28 7x - 7 = 28 I added 4x and 3x to get 7x 7x = 35 I subtracted 7 from both sides x = 5 I divided by 7 on both sides