WIL GET BRAINLIST Whoever gives me answers to these will get Brainlist
1: 2x+6=96
2: 2x+3+x-6=180
3: x+4+3x+2=90
4: x+16=4x-5
5: 2x+20+x+40=180
6: 7x-9+4x=90
Please help!!!

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why

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3.4a=57.8 what is the the value of a