Select all the correct answers. Which three equations are equivalent to 1 + 3x - 2) = 167
X+ 2 = -5 or X+ 2 = 5
1x+21= 5
X-2 = -5 or x - 2 = 5
1x 21 = 5
X=-3 or x= 7
x= 3 or x = -7

the answer is z7+8/5

we can set up an equation to find the girls' ages. the equation is         28=0.5x-5+x. (comment if you need me to explain how i got this equation.) so, you add x and 0.5x to get 1.5x and add 5 to each side. your new equation is 33=1.5x. now divide both sides of the equation by 1.5 to get 22=x. because x is mary's age, to find jasmine's age we subtract mary's age from 28. we find that mary is 22 years old and jasmine is 6 years old.