Answer:
x = -1
Step-by-step explanation:
3 + 2x = -x
- 2x - 2x
3 = -3x
divides 3 por ambos lados del signo igual
Hi ;-)
2x ⇒ dogs
5x ⇒ cats
2x + 5x = 14
7x = 14 / : 7
x = 2
2 · 2 = <u>4 dogs</u>
5 · 2 = <u>10 cats</u>