Ask the fifth grade simple equation 100! Alas, we have 10 equations every day for our summer homework. We have finished all the equations in the book, and there are still 10 days to go, so we need to solve 100 equations,

Ask the fifth grade simple equation 100! Alas, we have 10 equations every day for our summer homework. We have finished all the equations in the book, and there are still 10 days to go, so we need to solve 100 equations,

(0.5+x)+x=9.8÷2 2(X+X+0.5)=9.8 25000+x=6x 3200=450+5X+X X-0.8X=6 12x-8x=4.8 7.5*2X=15 1.2x=81.6 x+5.6=9.4 x-0.7x=3.6 91÷x ＝1.3 X+8.3=10.7 15x ＝3 3x－8＝16 7(x-2)=2x+3 3x+9=2718(x-2)=270 12x=300-4x...

Simple equation for grade five
Practical questions,

X-5.7=2.15 15 5X-2X=18 3X+0.7=5 3.5×2= 4.2+x 26×1.5= 2x+10 0.5×16―16×0.2=4x 13 9.25－X=0.403 16.9÷X=0.3 X÷0.5=2.6 x＋13＝33 3 － 5x＝80 1.8 +6x＝54 6.7x －60.3＝6.7 9 ＋4x ＝40

For a two digit number, the number on the tenth digit is 1 less than that on the single digit. The sum of the number on the tenth digit and the number on the single digit is 0.2 times of the two digit number

Let X be the one digit number and X-1 be the ten digit number
The equation is as follows
[10×（x-1）+x]×0.2=x+（x-1）
[10x-10+x]×0.2=x+x-1
[9x-10]×0.2=2x-1
1.8x-2=2x-1
2x-1.8x=2-1
0.2x=1
x=5
x-1=5-1=4
This two digit number is 45