Question

1) 5×
___=_180
10

2) 5x
___=325
4


3)_ 4×=_802
__
20

4) 4×+46=5×+20

5) 12×+1600=1500_4x

Answer 1

1- $\frac{5x}{10}= -180 5x = 10*(-180) x = -1800/5 x= -360$

2- $\frac{5x}{4}= 325 5x = 4*325 x = 1300/5 x= 260$

3- $\frac{-4x}{20}= -802 -4x = 20*(-802) x = -16040 /-4 x= 4010$

4- 46 - 20 = 5x - 4x ----  x = 16

5- 12x + 4x = 1500 - 1600 ---- 16x = -100 ---- x = -100/16 ---- x = -50/13 ou 6,25