Answer:
- 2x - 31
Step-by-step explanation:
Given
- 3(4x + 5) - 2(- 5x + 8)
Multiply the terms in the first parenthesis by - 3 and the terms in the second parenthesis by - 2
= - 12x - 15 + 10x - 16 ← collect like terms
= (- 12x + 10x) + (- 15 - 16)
= - 2x - 31
Answer:
36+9x=99
x=7
Step-by-step explanation:
36+9x=99
Subtract 99 and 36:
63
9x=63
Divide:
x=7
Answer:
Eat a food with 500 calories
Step-by-step explanation:
Answer:
92.
Step-by-step explanation:
By proportion the mass of zinc = (345/ 15) * 4
= 92.
