Respuesta :
Answer:
x = 3
Step-by-step explanation:
Step 1: Subtract 2.1x from both sides.
1.3x=3.9
Step 2: Divide both sides by 1.3
1.3x/1.3=3.9/1.3
x=3
Answer: x = 3
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Isolate the variable by dividing each side by factors that don't contain the variable.
Hope this helps!
Also can I have Brainliest please?