Q: What is -10 plus 7x plus 4x equals 78?

Write your answer...

Submit

Still have questions?

Continue Learning about Math & Arithmetic

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

x=19

546 + 432 - 78 + 345 = 555

36 + 78 + 198 + 475 + 620 = 1,407

12+14=26+10=36+24=60+10=70+8=78 the answer is 78

Related questions

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

x=19

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

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