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Earn +20 ptsQ: What is -10 plus 7x plus 4x equals 78?
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What is the answer to 4x plus y equals 9 and 7x-8y equals 6?
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
What is the value of x in 4x minus 2 equals 78?
x=19
546 plus 432-78 plus 345 equals?
546 + 432 - 78 + 345 = 555
What is 36 plus 78 plus 198 plus 475 plus 620 equals?
36 + 78 + 198 + 475 + 620 = 1,407
12 plus 14 plus 10 plus 24 plus 10 plus 8?
12+14=26+10=36+24=60+10=70+8=78 the answer is 78
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