3x + 20 = 5x - 32 Add 32 to both sides.3x + 52 = 5xSubtract 3x from both sides.52 = 2xDivide both sides by 2.26 = xThe answer is x = 26.
18
3x**2+x-10 Multiply first and last terms 3*-10=-30 Find factors of -30 that add up to second term 6+-5=1 rewrite 3x**2-5x+6x-10 Factor pairs of terms 3x**2-5x+6x-10 = x(3x-5)+2(3x-5) Factor x(3x-5)+2(x-5) = (x+2)(3x-5)
3x+11+5x=75(add 5x and 3x) 8x+11=75(-11) 8x=64(/ 8) x=8(ANSWER)
Yes, you can. For example 3x times 4y = 12xy.You cannot however, add like terms (to combine them, that is. There isn't anything wrong with adding them up, 3x + 4y is acceptable). For example, 3x + 4y is as simplified as it can get.
You cannot add 3x and 1. You can add 3x and x and get 4x though.
When you add a negative number, the one on the right side gets cancelled out. E.g. -3x + - 3x = -3x
7x-40 = -3x Add 40 and add 3x to both sides:- 7x-40+40+3x = 3x-3x+40 10x = 40 Divide both sides by 10:- x = 4
You cannot add them. The 'y' in the 4xy means that you cannot add it to 3x, since the 'y' is an extra component that the 'x' does not have. You can add 3x to 3x, or 4y to 4y, but you cannot add terms which contain different variables to each other. (It's like trying to add apples and oranges, they're not the same thing).
-3x-8+4x=17(-3x+4x)-8=17 ;combine like terms(x)-8=17 ;add 8 to both sidesx=25
5
3x-7+4 = 42 3x-7 = 38 3x = 45 x=15
3x + 4 = 4x - 5 Add 5 to both sides: 3x + 9 = 4x Subtract 3x from both sides: 9 = x
-5x+(3x-8)
4x - 13 = 22 - 3x add 3x to both sides 7x - 13 = 22 add 13 to both sides 7x = 35 divide both sides by 7 x = 5
-2 -3x = 10 Add 2 to both sides: - 3x = 12 Divide both sides by -3: x = -4
3x - 4 = 17 3x = 21 (add 4 to both sides) x = 7 (divide both sides by 3)