12 + 78 = 90
it's -1+(-1)=-2
90
12 - 78 + 2397543 - 124 + 3 = 2397356
16x-8x+12 = 78+22 16x-8x = 78+22-12 8x = 88 x = 11
12+14=26+10=36+24=60+10=70+8=78 the answer is 78
That equals 199
5x +12 = -78 -10x +10x +10x 15x +12 = -78 -12 -12 15x = -66 /15 /15 x = 4.4
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 = 78
78+78-:(85)/(78)+7,879=1405
78 + 89 + 167 + 897 + 78 = 1309
309?
In this equation, x=6.
55 + 82 + 92 + 78 + 100 + 96 + 78 = 581
16x - 8x + 12 = 78 + 22 or simplified to (16x-8x=8x)(78+22=100) 8x + 12 = 100 Simplify some more (Subtract 12 from both sides) 8x = 88 Divide both sides by 8, and x = 11