Can someone plz me with my math 1) before simplifying, how many terms are there in the expression 2x - 5y + 3 + x? 3 4 5 6 2) which of the terms cannot be combined with the others? 3a a 5b -2a 3) which of the terms cannot be combined with the others? -3x 4x 2 x 11x 4) all of the following are equivalent except 7x /\2 4x + 3x (4 + 3)x 7x 5) when simplified, which of the following expressions has a coefficient of -3? -2m + 5m 2m + 5m 5m - 2m -5m + 2m

 terms are separated by + or - signs, so 1) 4 terms
the variable needs to be the same in order to combine, so 2) 5b
3) I'm confused, is it 4x^2, not 4x 2, because it only makes sense if it is 4x^2? then that is the one that won't combine with the rest because the rest will combine. remember, if there s an exponent on the variable, in order to combine it with other terms, those terms need to have the same variable with the same exponent
okay, i m guessing you have trouble with typing exponents xD
7x = (3+4)x = 4x+3x  7x^2
so, 4) 7x^2 
-2m +5m = (5-2)m=3m
-5m+2m=(2-5)m=-3m
so, 5) -5m+2m

The scale factor of what ?