Question

need help with Equations:
I don't understand what 4x-2x+4=x+10 I don't have a clue how to solve and check it. please help me

Answer 1

First thing to remember. You can do what you want to the equation (almost, anyway) as long as you do the same thing to both sides.
4x - 2x + 4 = x + 10
combine like terms.
4x-2x = 2x on the left so it looks like this.2x+4=x+10
Now you want to get the unknowns on one side (the x terms) and the numbers on the other. Let's operate first to move the x on the right. We have this so far,
2x+4=x+10
subtract x from both sides.
2x-x+4=x-x+10
combine like terms.
2x-x=1x but we don't need to write the 1.
x+4=10
Now to move the 4 to the right side.
subtract 4 from both sides.
x+4-4=10-4
x=6
Check it. Substitute x for the x terms in the equation.
4x-2x+4=x+10
4*6 - 2*6 + 4 = 6 +10
24-12+4=6+10
12+4=6+10
16=16
So x = 6 must be correct since it satisfies the equation.