Respuesta :
Answer: meow 1. −6z + 13 = −11z − 7
2. 6 + 17z = 13z + 18
3. 4
5 k – 5 = –7 +
2
5 k
4. − 4
5 w +
1
4 =
1
5 +
1
3 w
5. 15(−42x + 40) = 15(−8x + 244)
6. 4 – 3
5 (3a + 4) = 7
7. 1
2 (15 + 7d) = − d
Step-by-step explanation:
Answer:
The amount of money David spent is $115.
Step-by-step explanation:
Consider the provided information.
David had $350. After shopping, he was left with $235.
Let the money spent by David is c.
As some money are spent from the total amount, So use a "-" sign and put the equation equals to 235, as this is the amount he left with.
The equation can be represented as:
350 - c = 235
Now simplify the above equation in order to find the money spent by David.
Isolate the variable by adding c and subtracting 235 from both sides.
350 - c + c -235 = 235 + c -235
115 = c
Hence, the amount of money David spent is $115.