If you're asking what x equals, it equals 5 because 5x3=15, and 15-2=13.
The generalisation is that multiplication is Abelian (or commutative) for numbers.
3x+5=20 x=5 since 5x3+5=20
5x3 - 3x2 + 2x = x*(5x2 - 3x + 2) The quadratic has no real factors.
y = 5x3 + 6 is a cubic equation, not a linear equation. Linear equations contain only terms of degree 0 (i.e. constants) and terms of degree 1.
If you're asking what x equals, it equals 5 because 5x3=15, and 15-2=13.
Ah, what a happy little question! The inverse operation of multiplication is division, so to find the inverse of 3x5 equals 15, you would divide 15 by 5 to get 3. Remember, math is like painting a beautiful landscape - just follow the steps with a gentle touch and you'll create something wonderful.
5x3=4 2x8=2 6x3=3 1x7=7/40
The generalisation is that multiplication is Abelian (or commutative) for numbers.
Commutivity of multiplication or the commutative property of multiplication.
Since 5x is a factor of both terms, divide it. 5x3 + 5x = 5x(x2 + 1)
5x3 = 45x Divide both sides by 5: x3 = 9x Divide both sides by x: x2 = 9 Square root both sides: x = 3
3x+5=20 x=5 since 5x3+5=20
5x3 - 3x2 + 2x = x*(5x2 - 3x + 2) The quadratic has no real factors.
y = 5x3 + 6 is a cubic equation, not a linear equation. Linear equations contain only terms of degree 0 (i.e. constants) and terms of degree 1.
2(10x6) 4(5x3)
2 + (5x3) = 17