−(2x+1)+7.8=−4.6-(2x+1)+7.8=-4.6
1
Remove parentheses.
−2x−1+7.8=−4.6-2x-1+7.8=-4.6

2
Simplify  −2x−1+7.8-2x-1+7.8  to  −2x+6.8-2x+6.8.
−2x+6.8=−4.6-2x+6.8=-4.6

3
Subtract 6.86.8 from both sides.
−2x=−4.6−6.8-2x=-4.6-6.8

4
Simplify  −4.6−6.8-4.6-6.8  to  −11.4-11.4.
−2x=−11.4-2x=-11.4

5
Divide both sides by −2-2.
x=−11.4−2x=\frac{-11.4}{-2}

6
Simplify  −11.4−2\frac{-11.4}{-2}  to  5.75.7.
x=5.7x=5.7

Done

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