Answer:
-9
Step-by-step explanation:
A = x - 1
3A = 3 * (x - 1) = 3x - 3
B = x + 2
3B = 3*(x + 2) = 3x + 3*2 = 3x + 6
3A - 3B = 3x - 3 - (3x + 6) = 3x - 3 + 3x*(-1) - 6*(-1)
= 3x - 3 -3x - 6
= 0 - 9
= -9
When we solve the equation, we will get the real answer <u>x=40</u> as a variable.
<h3>First Degree Equation</h3>
First degree equation is a mathematical sentence, which has values represented by letters.
These letters can indicate a variable or an unknown - which at the end of the equation will be the final value.
— To solve this equation, just: apply the distributive property (multiply the terms that are outside the parentheses, for the terms that are inside the symbol).
— Next, let's add the real numbers together. Next, we'll subtract the like terms before the equality, thus moving the common term after the equality by adding.
— Finally, let's divide the equation, thus obtaining the final result.
4 + 3(x + 22) = 5x - 10
4 + 3x + 66 = 5x - 10
70 + 3x = 5x - 10
3x - 5x = -10 - 70
-2x = -80
x = 80 ÷ 2
<u>x = 40</u>
Therefore, the correct value of X in this equation, will be <u>x = 40</u>.
1. =7
2.=19
Please let me know if you got it correct!
