4.5X + 8 = 7x to solve the equation There are also tests

4.5x-7x=-8
(4.5-7)x=-8
-2.5x=-8
x=8÷2.5
x=3.2
Test: left = 4.5 x 3.2 + 8 = 22.4 = 7 x 3.2 = right
So x = 3.2 is the solution of the original equation

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