Right triangle are 90 degrees and the rest is below 50 degrees more likely to be acute
My present age - x
Mom's age - 2x + 12
My age after 8 yrs - x +8
My mom's age after 8 years - 2x+20
Equation formed-
3(x+8)-20 = 2x+20
3x +24 -20 = 2x +20
x = 20-4 = 16
Therefore, my present age = x = 16 yrs
And my mom's present age = 2x + 12 = 32+12 = 44
Yes is A and the solution is that when you add negatives it restart number like 3x - - 3= 0
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression. Hope this helps! :)