2 zadania w załącznikach.
1.y-x=154
y:x=4+16:x
y:x=(4x+16):x / *x
y=4x+16
y-x=154
4x+16-x=154
3x=138
x=46
y-46=154
y=200
2. ms:(mr+187,5cm3)=1:10
ms:(mr+187,5cm3+375cm3)=1:20
mr+187,5cm3=375cm3
mr=187,5cm3
ms:375cm3=1:10
ms=37,5cm3
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1.y-x=154
y:x=4+16:x
y:x=(4x+16):x / *x
y=4x+16
y-x=154
4x+16-x=154
3x=138
x=46
y-x=154
y-46=154
y=200
2. ms:(mr+187,5cm3)=1:10
ms:(mr+187,5cm3+375cm3)=1:20
mr+187,5cm3=375cm3
mr=187,5cm3
ms:375cm3=1:10
ms=37,5cm3