find the value of x that makes each equation below true.
a. x + 7 = 2
b.-5 = 1/2x
c. 3x = -45
d. 2 = -x
e -5 = x/2

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?