3X-28=X+28-6

3X-28=X+28-6


3x-28=x+28-6
3x-x=28-6+28
2x=50
x=50÷2
x=25
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How to solve 3x-50% x = 28?


3X-50%X=28
3X-0.5X=28
2.5X=28
X=28/2.5
X=11.2



How to calculate (30 + x) (20 + 2 / 3x) = 2 × 30 × 20


Divide both sides by 2 / 3 to get the square of (x + 30) equal to 1800



What is the solution of {x + 2Y = 20,3x + y = 30


X + 2Y = 20 ①
3X + Y = 30 ②
① 2 × 2
-5x = -40
x = 8
Substituting x = 2 into (1) yields:
y = 6
therefore
x = 8
y = 6