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Question:

Solve the equation.
4.3x − 0.7(x+ 2.1) = 8.61

A x = 2.8
Explaination

Original equation.
4.3x − 0.7(x+ 2.1) = 8.61
Apply the distributive property.
4.3x − 0.7x − 1.47 = 8.61
Combine like terms on the left side.
3.6x − 1.47 = 8.61
Add 1.47 to both sides.
3.6x = 10.08
Divide both sides by 3.6.
x = 2.8