Answer:
What I Can Do
1. x + (x+2) + (x-2) = 42
[ 3x = 42]/3
x = 14
x = 14
x+2 = 16
x-2 = 12
- 12, 14, 16
2. 3x-5 = 67
[3x = 72]/3
x = 24
3. 1/2x +8 = 23
1/2x = 23-8
[1/2x = 15]/(1/2)
x = 30
4. 6x+23 = 131
[6x = 108]/6
x = 18
5. y + 12 = 63
y = 63-12
y = 51
6. [3x = 45000]/3
x = 15000
Php 15, 000
7. x = 7(25)
x = 175
175 grams
8. x + 5 - brother's age
x + 5 = 16+5
= 21
21 yrs. old
9. x - star apples
2x - guavas
x + 2x = 18
[3x = 18]/3
x = 6 star apples
2x = 12 guavas
10. x - ripe
5x - raw
x+5x = 30
[6x = 30]/6
x = 5 ripe mangoes
5x = 25 ripe mangoes
Assessment
1. x +3 = 8
x = 8-3
x = 5
2. 2x + 4 - Helen's father
= 2(15) +4
= 30+4
= 34 yrs. old
3. x- girls
x +5 - boys
x + x +5 = 57
2x = 57-5
[2x = 52]/2
x = 26
x + 5 = 26 +5
= 31 boys
4. 2x - 15 = alvin's friend
= 2(25) - 15
= 50-15
= 35 kg
5. x - boys
2x - girls
x +2x = 30
[3x = 30]/3
x = 10 boys
2x = 20 girls
Please recheck :)
