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Solve the equation:

[tex]\[ 4x - 5 + 2x + 10 = 3x - 3 \][/tex]

A. [tex]\[ x = -1 \][/tex]
B. [tex]\[ x = -\frac{8}{3} \][/tex]
C. [tex]\[ x = 2 \][/tex]
D. [tex]\[ x = \frac{8}{9} \][/tex]


Sagot :

To solve the equation [tex]\(4x - 5 + 2x + 10 = 3x - 3\)[/tex], follow these step-by-step instructions:

1. Combine like terms on the left side of the equation:
Combine the [tex]\(x\)[/tex]-terms and the constant terms:
[tex]\[ 4x + 2x - 5 + 10 = 6x + 5 \][/tex]
So the left side of the equation is now:
[tex]\[ 6x + 5 \][/tex]

2. Rewrite the equation with the simplified left side:
[tex]\[ 6x + 5 = 3x - 3 \][/tex]

3. Move all [tex]\(x\)[/tex]-terms to one side of the equation and constant terms to the other side:
Subtract [tex]\(3x\)[/tex] from both sides to get the [tex]\(x\)[/tex]-terms on one side:
[tex]\[ 6x - 3x + 5 = -3 \][/tex]
Simplify this to:
[tex]\[ 3x + 5 = -3 \][/tex]

4. Isolate the [tex]\(x\)[/tex]-term:
Subtract 5 from both sides of the equation to move the constants to the right side:
[tex]\[ 3x + 5 - 5 = -3 - 5 \][/tex]
Simplify this to:
[tex]\[ 3x = -8 \][/tex]

5. Solve for [tex]\(x\)[/tex]:
Divide both sides by 3 to isolate [tex]\(x\)[/tex]:
[tex]\[ x = \frac{-8}{3} \][/tex]

So, the solution to the equation is [tex]\( x = -\frac{8}{3} \)[/tex].

Therefore, the correct answer is:
(B) [tex]\( x = -\frac{8}{3} \)[/tex]