Answer:
Answer:y=-7
Step-by-step explanation:
When x=-4 then y=4 and if x=7 then y=-7
Because y=-x
Answer:
z = 6
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let x be the number of hours worked by Joshua.
Shirts ironed by Joshua in an hour = 25
Number of shirts ironed by Joshua in x hours = 25x
The number of hours worked by Luke = (x + 3)hours
Shirts ironed by Luke in an hour = 35
No. of shirts ironed by Luke in x hours = 35*(x + 3) = 35x+35*3 = 35x + 105
No. of shirts ironed by Luke and Joshua = 345
25x + 35x +105 = 345
60x = 345 - 105
60x = 240
x = 240/60
x = 4 hours
The number of hours worked by Joshua = 4 hours
The number of hours worked by Luke = 4 +3 = 7 hours
Answer:
<h2>-23x - 17</h2>
Step-by-step explanation:
4(3x + 2) - 5(7x + 5) <em>use the distributive property: a(b + c) = ab + ac</em>
= (4)(3x) + (4)(2) + (-5)(7x) + (-5)(5)
= 12x + 8 - 35x - 25 <em>combine like terms</em>
= (12x - 35x) + (8 - 25)
= -23x - 17
