7x = 91
x = 91 / 7
x = 13
Last verified on 10-10-2026
Given:
4x − 2y = 10 ...(1)
2x + y = 5 ...(2)
Multiply equation (2) by 2:
4x + 2y = 10 ...(3)
Add equations (1) and (3):
8x = 20
x = 20 ÷ 8
x = 2.5
Last verified on 09-10-2026
(x-2)/3 + (x-4)/10 = x/2
Take LCM of 3,10,2 = 30 and multiply both sides by 30
10_(x-2) + 3_(x-4) = 15*x
10x - 20 + 3x - 12 = 15x
13x - 32 = 15x
-32 = 15x - 13x
-32 = 2x
x = -16
Last verified on 07-10-2026
Maryam = x
Bilal = x - 3 (because Maryam has 3 more than Bilal)
Jameel = x + 5 (because Maryam has 5 less than Jameel)
Jameel + Bilal = (x + 5) + (x - 3) = 2x + 2
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