It is an equation and the value of x is 8
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∙ 2012-01-13 11:08:30x=19
4x + y = 9 so that y = 9 - 4x 7x - 8y = 6 7x - 8*(9-4x) = 6 7x - 72 + 32x = 6 39x = 78 x = 2 Then y = 9 - 4x = 9-4*2 = 9-8 = 1
The diagonals will be equal and so: 4x-47 = 2x+31 => 4x-2x = 31+47 => 2x = 78 Therefore the value of x is: x = 78/2 => x = 39
In this equation, x=6.
2x + 89 = 78 Therefore, 2x = 78 - 89 x = -11/2 x = -5.5
x=19
4x + y = 9 so that y = 9 - 4x 7x - 8y = 6 7x - 8*(9-4x) = 6 7x - 72 + 32x = 6 39x = 78 x = 2 Then y = 9 - 4x = 9-4*2 = 9-8 = 1
25 + 78 = 103
4+78=82-7=75
167 ■
546 + 432 - 78 + 345 = 555
36 + 78 + 198 + 475 + 620 = 1,407
That equals 199
No.567 + 78 - 56 = 589
12+14=26+10=36+24=60+10=70+8=78 the answer is 78
144
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