3 times 3 and 3 to the second power
Answer:
x = 12
Step-by-step explanation:
given 2x - 7 = 5 + x ( subtract x from both sides of the equation )
x - 7 = 5 ( add 7 to both sides )
x = 12
2 gallons 25% of 4 is 1 so there is about 1 gallon of pure in there no so adding two will make 3 gallons of antifreeze bringing total to 6 gallons 3/6 = .5 boom bam 50%