7 3 x answer attempt 1 out of 2 July 8, 2019 16 32 64 128 7(x+3)=28 answer attempt 1 out of 2 X+3≤7 answer attempt 1 out of 2 3(x−7)=−9 answer attempt 1 out of 2 7(−x+3)=3(−3x+7)answer attempt 1 out of 2 6x+7=3x+19 answer attempt 1 out of 2 −(−x−1)=−x+3(−x+7)+6 answer attempt 1 out of 2 7-0=6 matchsticks answer 2 move 3/7 + 4/7 answer