Answer:
3 - (-7)
= 3 + 7.
Step-by-step explanation:
A double negative is equivalent to a plus.
First, take about the
and
You can cancel out the two 3's on the bottom using two of the threes from the numerator
Simplify the fraction
3 x 3 Multiply
9
Answer:
A . x=13 is the solution of this question.
Answer:
y=6
Step-by-step explanation:
use elimination by making the ys opposite in value and eliminating them from the equation so there is only variable:
-3x+2y=6
2(4x-y=2)
-3x+2y=6
8x-2y=4
Combine like terms and divide by 5 on both sides.
5x=10
x=2
Plug x in to find y:
4(2)-y=2
8-y=2
y=6
1) 50 × 2 = 100
2) 60×20= 1200
3) 70×20=1400
Hope this helps
