Respostas
respondido por:
1
2x+1=4x+9
2x - 4x = 9 - 1
-2x = 8
x = 8/ -2
x = - 4
2x - 4x = 9 - 1
-2x = 8
x = 8/ -2
x = - 4
respondido por:
0
2x+1=4x+9
2x - 4x = 9 - 1
-2x = 8
x = 8/ -2
x = - 4
2x - 4x = 9 - 1
-2x = 8
x = 8/ -2
x = - 4
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2x + 1 = 4x + 9
Reorder the terms:
1 + 2x = 4x + 9
Reorder the terms:
1 + 2x = 9 + 4x
Solving
1 + 2x = 9 + 4x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4x' to each side of the equation.
1 + 2x + -4x = 9 + 4x + -4x
Combine like terms: 2x + -4x = -2x
1 + -2x = 9 + 4x + -4x
Combine like terms: 4x + -4x = 0
1 + -2x = 9 + 0
1 + -2x = 9
Add '-1' to each side of the equation.
1 + -1 + -2x = 9 + -1