Seudónimo Seudónimo 15-12-2020 Mathematics contestada Find the value of the variable using these steps. 0.4x + 3.9 = 5.78 1. Subtraction property of equality 2. Division property of equality x = All the single boys follow me I'm single right now. 19 and up only!! if you live in Michigan give me a heart and i will get to you.