3x + 7= -x - 1
-3x=x-(6-2x)
1-2x-5=4x+2
2x+3=-2x+5
I cant remember the steps to evaluate.
3x + 7= -x - 1
4x = -1 -7
4x = -8
x = -2
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-3x=x-(6-2x)
-3x = x - 6 + 2x
-6x = -6
x = 1
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You try the other two problems. I'll be glad to check your answers.
2x+3=-2x+5
I think the answer is 8
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1-2x-5=4x+2
2x=8?
X=4?
I doubt I got this right
To solve the equations, you need to isolate the variable on one side of the equation. Here are the step-by-step solutions to each of the equations you provided:
1. 3x + 7 = -x - 1:
Start by bringing all the variable terms to one side and the constant terms to the other side:
3x + x = -7 - 1
Combining like terms:
4x = -8
Divide both sides by 4 to isolate x:
x = -2
2. -3x = x - (6 - 2x):
Distribute the negative sign inside the parentheses:
-3x = x - 6 + 2x
Combine like terms:
-3x - x - 2x = -6
Simplify further:
-6x = -6
Divide both sides by -6 to isolate x:
x = 1
3. 1 - 2x - 5 = 4x + 2:
Combine like terms:
-2x - 4 = 4x + 2
Move all the variable terms to one side and the constant terms to the other side:
-2x - 4 - 4x = 2
Combine like terms:
-6x - 4 = 2
Add 4 to both sides:
-6x = 6
Divide both sides by -6 to isolate x:
x = -1
4. 2x + 3 = -2x + 5:
Move all the variable terms to one side and the constant terms to the other side:
2x + 2x = 5 - 3
Combine like terms:
4x = 2
Divide both sides by 4 to isolate x:
x = 1/2 or 0.5
Remember to double-check your answers by substituting the values back into the original equation to ensure they satisfy the equation.