f(x) = 7x + 13
f(-3) = 7(-3) + 13
f(-3) = -21 + 13
f(-3) = -8
8/9 + 1/7= 56/63 + 9/63= 56+9= 65/63 = 1 2/63
it equals 1 and 2 over 63
Answer:
x=-12
Step-by-step explanation:
4x−2(x+1)=3x+10
Step 1: Simplify both sides of the equation.
4x−2(x+1)=3x+10
4x+(−2)(x)+(−2)(1)=3x+10(Distribute)
4x+−2x+−2=3x+10
(4x+−2x)+(−2)=3x+10(Combine Like Terms)
2x+−2=3x+10
2x−2=3x+10
Step 2: Subtract 3x from both sides.
2x−2−3x=3x+10−3x
−x−2=10
Step 3: Add 2 to both sides.
−x−2+2=10+2
−x=12
Step 4: Divide both sides by -1.
−x/−1=12/−1
x=−12
Answer:
x=−12
20+36= 56
56+20=76
she drank 76 ounces
and there are 8 ounces in a cup
76÷8=9.5
she drank 9.5 cups