What is the solution of 3x + 5 = 2x -7

➷  Collect like terms

3x + 5 = 2x - 7

Subtract 2x from both sides:

x + 5 = -7

Subtract 5 from both sides:

x = -12

Thus, your answer is x = -12

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x=-12

Step-by-step explanation:

3x+5=2x-7

1) Subtract 5 from both sides:

3x=2x-12

2) Subtract 2x from both sides:

x=-12

Footnotes:

1) Remember, whatever you do to one side of the equation, you MUST ALSO do to the other!

2) Your goal is to isolate or get the variable on one side of the equation!

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116