Answer:
8.70
Step-by-step explanation:
4x + 5 = 29
Subtract 5 on both sides
4x = 24
Divide by 4
X = 6
Now the second one:
2(x-4) = 40
Distribute the 2 into the parenthesis
2x - 8 = 40
Add 8 on both sides
2x = 48
Divide by 2
X = 24
I hope this Helps!
Step-by-step explanation:
5x+2y=29
5x-2y=41
add the equations
10x=70
divide both sides by ten
x=7
substitute 7 in the first equation
5(7)+2y=29
simplify
35+2y=29
subtract 35 from both sides
2y=-6
simplify
y=-3 x=7
3x+2y=9
5x+2y=12
subtract the equations
-2x=-3
simplify
x=1.5
substitute
3(1.5)+2y=9
simplify
4.5+2y=9
subtract 4.5 from both sides
2y=4.5
simplify
y=2.25 x=1.5
5x+2y=-9
2x-3y=4
multiply first equation by three and second by two
15x+6y=-27
4x-6y=8
add equations
19x=-19
simplify
x=-1
substitute
15(-1)+6y=-27
simplify
-15+6y=-27
add 15 to both sides
6y=-12
simplify
y=-2 x=-1
5.28 rounded to the nearest tenth is 5.3
Answer:
38x
Step-by-step explanation:
{(10x+1)3x}+5(5x)
10x+3x+25x=38x
